diff --git a/L2J_Mobius_01.0_Ertheia/dist/game/data/xsd/skills.xsd b/L2J_Mobius_01.0_Ertheia/dist/game/data/xsd/skills.xsd
index 71bc1daaed..7ddce12728 100644
--- a/L2J_Mobius_01.0_Ertheia/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_01.0_Ertheia/dist/game/data/xsd/skills.xsd
@@ -2037,7 +2037,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_02.5_Underground/dist/game/data/xsd/skills.xsd b/L2J_Mobius_02.5_Underground/dist/game/data/xsd/skills.xsd
index 87867a04e5..c982908e76 100644
--- a/L2J_Mobius_02.5_Underground/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_02.5_Underground/dist/game/data/xsd/skills.xsd
@@ -2097,7 +2097,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_03.0_Helios/dist/game/data/xsd/skills.xsd b/L2J_Mobius_03.0_Helios/dist/game/data/xsd/skills.xsd
index ec992d354d..779f2e8523 100644
--- a/L2J_Mobius_03.0_Helios/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_03.0_Helios/dist/game/data/xsd/skills.xsd
@@ -2129,7 +2129,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_04.0_GrandCrusade/dist/game/data/xsd/skills.xsd b/L2J_Mobius_04.0_GrandCrusade/dist/game/data/xsd/skills.xsd
index 7e0ecb1310..6a5a2e8a65 100644
--- a/L2J_Mobius_04.0_GrandCrusade/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_04.0_GrandCrusade/dist/game/data/xsd/skills.xsd
@@ -2161,7 +2161,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_05.0_Salvation/dist/game/data/xsd/skills.xsd b/L2J_Mobius_05.0_Salvation/dist/game/data/xsd/skills.xsd
index bf915b4866..18a95b79f4 100644
--- a/L2J_Mobius_05.0_Salvation/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_05.0_Salvation/dist/game/data/xsd/skills.xsd
@@ -2165,7 +2165,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_05.5_EtinasFate/dist/game/data/xsd/skills.xsd b/L2J_Mobius_05.5_EtinasFate/dist/game/data/xsd/skills.xsd
index 9f97ad4cc0..e196cc7108 100644
--- a/L2J_Mobius_05.5_EtinasFate/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_05.5_EtinasFate/dist/game/data/xsd/skills.xsd
@@ -2165,7 +2165,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_06.0_Fafurion/dist/game/data/xsd/skills.xsd b/L2J_Mobius_06.0_Fafurion/dist/game/data/xsd/skills.xsd
index 4eeaa891cc..e739dcb971 100644
--- a/L2J_Mobius_06.0_Fafurion/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_06.0_Fafurion/dist/game/data/xsd/skills.xsd
@@ -2165,7 +2165,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_07.0_PreludeOfWar/dist/game/data/xsd/skills.xsd b/L2J_Mobius_07.0_PreludeOfWar/dist/game/data/xsd/skills.xsd
index fe2bd4e0c9..4bf271d6b6 100644
--- a/L2J_Mobius_07.0_PreludeOfWar/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_07.0_PreludeOfWar/dist/game/data/xsd/skills.xsd
@@ -2229,7 +2229,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_08.2_Homunculus/dist/game/data/xsd/skills.xsd b/L2J_Mobius_08.2_Homunculus/dist/game/data/xsd/skills.xsd
index 66917ed571..9af6754e85 100644
--- a/L2J_Mobius_08.2_Homunculus/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_08.2_Homunculus/dist/game/data/xsd/skills.xsd
@@ -2240,7 +2240,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_09.2_ReturnOfTheQueenAnt/dist/game/data/xsd/skills.xsd b/L2J_Mobius_09.2_ReturnOfTheQueenAnt/dist/game/data/xsd/skills.xsd
index 39690fe24f..954c200216 100644
--- a/L2J_Mobius_09.2_ReturnOfTheQueenAnt/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_09.2_ReturnOfTheQueenAnt/dist/game/data/xsd/skills.xsd
@@ -2254,7 +2254,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_10.2_MasterClass/dist/game/data/xsd/skills.xsd b/L2J_Mobius_10.2_MasterClass/dist/game/data/xsd/skills.xsd
index f1d2c723ab..f2fa218aac 100644
--- a/L2J_Mobius_10.2_MasterClass/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_10.2_MasterClass/dist/game/data/xsd/skills.xsd
@@ -2273,7 +2273,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_1.0/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_1.0/dist/game/data/xsd/skills.xsd
index 948c204165..f696be23be 100644
--- a/L2J_Mobius_Classic_1.0/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_1.0/dist/game/data/xsd/skills.xsd
@@ -202,7 +202,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_1.5_AgeOfSplendor/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_1.5_AgeOfSplendor/dist/game/data/xsd/skills.xsd
index 948c204165..f696be23be 100644
--- a/L2J_Mobius_Classic_1.5_AgeOfSplendor/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_1.5_AgeOfSplendor/dist/game/data/xsd/skills.xsd
@@ -202,7 +202,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/xsd/skills.xsd
index 948c204165..f696be23be 100644
--- a/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_2.0_Saviors/dist/game/data/xsd/skills.xsd
@@ -202,7 +202,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_2.5_Zaken/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_2.5_Zaken/dist/game/data/xsd/skills.xsd
index 8f40d29db4..3800292de7 100644
--- a/L2J_Mobius_Classic_2.5_Zaken/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_2.5_Zaken/dist/game/data/xsd/skills.xsd
@@ -219,7 +219,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_2.7_Antharas/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_2.7_Antharas/dist/game/data/xsd/skills.xsd
index 36f79cd605..47563adb99 100644
--- a/L2J_Mobius_Classic_2.7_Antharas/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_2.7_Antharas/dist/game/data/xsd/skills.xsd
@@ -219,7 +219,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_2.8_SevenSigns/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_2.8_SevenSigns/dist/game/data/xsd/skills.xsd
index b7b9d79413..7450111b74 100644
--- a/L2J_Mobius_Classic_2.8_SevenSigns/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_2.8_SevenSigns/dist/game/data/xsd/skills.xsd
@@ -219,7 +219,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_2.9.5_Saviors/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_2.9.5_Saviors/dist/game/data/xsd/skills.xsd
index 258fe43c88..1c967a521b 100644
--- a/L2J_Mobius_Classic_2.9.5_Saviors/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_2.9.5_Saviors/dist/game/data/xsd/skills.xsd
@@ -219,7 +219,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_2.9_SecretOfEmpire/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_2.9_SecretOfEmpire/dist/game/data/xsd/skills.xsd
index 258fe43c88..1c967a521b 100644
--- a/L2J_Mobius_Classic_2.9_SecretOfEmpire/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_2.9_SecretOfEmpire/dist/game/data/xsd/skills.xsd
@@ -219,7 +219,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/xsd/skills.xsd
index 0b21268f7b..f1c666f7f7 100644
--- a/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_3.0_TheKamael/dist/game/data/xsd/skills.xsd
@@ -219,7 +219,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Classic_Interlude/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Classic_Interlude/dist/game/data/xsd/skills.xsd
index 1223c2d6ab..a83a3be5f7 100644
--- a/L2J_Mobius_Classic_Interlude/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Classic_Interlude/dist/game/data/xsd/skills.xsd
@@ -2147,7 +2147,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/xsd/skills.xsd
index 5e1d9ac43a..b6a6b5f4b1 100644
--- a/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Essence_4.2_DwellingOfSpirits/dist/game/data/xsd/skills.xsd
@@ -204,7 +204,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/xsd/skills.xsd
index fe6dd8b131..117ffaf636 100644
--- a/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Essence_5.2_FrostLord/dist/game/data/xsd/skills.xsd
@@ -204,7 +204,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>
diff --git a/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/xsd/skills.xsd b/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/xsd/skills.xsd
index f59d11c7d8..888ab29638 100644
--- a/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/xsd/skills.xsd
+++ b/L2J_Mobius_Essence_6.2_Vanguard/dist/game/data/xsd/skills.xsd
@@ -206,7 +206,7 @@
 												<xs:complexType>
 													<xs:simpleContent>
 														<xs:extension base="xs:boolean">
-															<xs:attribute name="level" type="xs:boolean" use="required" />
+															<xs:attribute name="level" type="xs:unsignedByte" use="required" />
 														</xs:extension>
 													</xs:simpleContent>
 												</xs:complexType>