diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/api/player/PlayerData.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/api/player/PlayerData.java
index f4ffd6df..df27d52e 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/api/player/PlayerData.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/api/player/PlayerData.java
@@ -221,10 +221,10 @@ public class PlayerData extends OfflinePlayerData implements Closable, Experienc
     }
 
     @Override
-    public Map<Integer, ClassSkill> mapBoundSkills() {
-        Map<Integer,ClassSkill> result= new HashMap<>();
+    public Map<Integer, String> mapBoundSkills() {
+        Map<Integer,String> result= new HashMap<>();
         for(int slot:boundSkills.keySet())
-            result.put(slot,boundSkills.get(slot).getClassSkill());
+            result.put(slot,boundSkills.get(slot).getClassSkill().getSkill().getHandler().getId());
         return result;
     }
 
diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/ClassDataContainer.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/ClassDataContainer.java
index eb9625b6..f1198b19 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/ClassDataContainer.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/ClassDataContainer.java
@@ -43,7 +43,7 @@ public interface ClassDataContainer {
 
     Map<String, Integer> mapSkillTreePoints();
 
-    Map<Integer,ClassSkill> mapBoundSkills();
+    Map<Integer,String> mapBoundSkills();
 
     Map<SkillTreeNode, Integer> getNodeLevels();
 
diff --git a/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/DefaultPlayerData.java b/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/DefaultPlayerData.java
index d7cfb92a..48c54d08 100644
--- a/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/DefaultPlayerData.java
+++ b/MMOCore-API/src/main/java/net/Indyuce/mmocore/player/DefaultPlayerData.java
@@ -128,7 +128,7 @@ public class DefaultPlayerData implements ClassDataContainer {
     }
 
     @Override
-    public Map<Integer,ClassSkill> mapBoundSkills() {
+    public Map<Integer,String> mapBoundSkills() {
         return new HashMap<>();
     }