diff --git a/src/main/java/noppes/npcs/attribute/AttributeDefinition.java b/src/main/java/noppes/npcs/attribute/AttributeDefinition.java
index 9657d1572..f68995a0b 100644
--- a/src/main/java/noppes/npcs/attribute/AttributeDefinition.java
+++ b/src/main/java/noppes/npcs/attribute/AttributeDefinition.java
@@ -6,22 +6,16 @@ package noppes.npcs.attribute;
  * once in the AttributeController.
  */
 public class AttributeDefinition {
-    private final int id;
-    private final String key;         // e.g., "cnpc:main_attack_flat"
+    private final String key;         // e.g., "rpgcore:main_attack_flat"
     private final String displayName; // Human‑readable name
     private final AttributeValueType attributeValueType;
 
-    public AttributeDefinition(int id, String key, String displayName, AttributeValueType attributeValueType) {
-        this.id = id;
+    public AttributeDefinition(String key, String displayName, AttributeValueType attributeValueType) {
         this.key = key;
         this.displayName = displayName;
         this.attributeValueType = attributeValueType;
     }
 
-    public int getId() {
-        return id;
-    }
-
     public String getKey() {
         return key;
     }
diff --git a/src/main/java/noppes/npcs/attribute/AttributeKeys.java b/src/main/java/noppes/npcs/attribute/AttributeKeys.java
index 5707a770a..4e50af762 100644
--- a/src/main/java/noppes/npcs/attribute/AttributeKeys.java
+++ b/src/main/java/noppes/npcs/attribute/AttributeKeys.java
@@ -1,17 +1,17 @@
 package noppes.npcs.attribute;
 
 public final class AttributeKeys {
-    public static final String MAIN_ATTACK_FLAT = "cnpc:main_attack_flat";
-    public static final String MAIN_ATTACK_PERCENT = "cnpc:main_attack_percent";
-    public static final String HEALTH = "cnpc:health";
-    public static final String CRITICAL_CHANCE_PERCENT = "cnpc:critical_chance_percent";
-    public static final String CRITICAL_DAMAGE_FLAT = "cnpc:critical_damage_flat";
+    public static final String MAIN_ATTACK_FLAT = "rpgcore:main_attack_flat";
+    public static final String MAIN_ATTACK_PERCENT = "rpgcore:main_attack_percent";
+    public static final String HEALTH = "rpgcore:health";
+    public static final String CRITICAL_CHANCE_PERCENT = "rpgcore:critical_chance_percent";
+    public static final String CRITICAL_DAMAGE_FLAT = "rpgcore:critical_damage_flat";
 
     // Magic–based attribute keys:
-    public static final String MAGIC_DAMAGE_FLAT = "cnpc:magic_damage_flat";
-    public static final String MAGIC_DAMAGE_PERCENT = "cnpc:magic_damage_percent";
-    public static final String MAGIC_DEFENSE_FLAT = "cnpc:magic_defense_flat";
-    public static final String MAGIC_RESISTANCE_PERCENT = "cnpc:magic_resistance_percent";
+    public static final String MAGIC_DAMAGE_FLAT = "rpgcore:magic_damage_flat";
+    public static final String MAGIC_DAMAGE_PERCENT = "rpgcore:magic_damage_percent";
+    public static final String MAGIC_DEFENSE_FLAT = "rpgcore:magic_defense_flat";
+    public static final String MAGIC_RESISTANCE_PERCENT = "rpgcore:magic_resistance_percent";
 
     private AttributeKeys() { }
 }