diff --git a/src/main/java/emu/nebula/data/GameData.java b/src/main/java/emu/nebula/data/GameData.java
index 1079902..c69258b 100644
--- a/src/main/java/emu/nebula/data/GameData.java
+++ b/src/main/java/emu/nebula/data/GameData.java
@@ -11,7 +11,7 @@ import java.util.stream.Collectors;
 import it.unimi.dsi.fastutil.ints.*;
 import it.unimi.dsi.fastutil.objects.Object2ObjectMap;
 import it.unimi.dsi.fastutil.objects.Object2ObjectOpenHashMap;
-
+import emu.nebula.data.custom.CharGemAttrGroupDef;
 import emu.nebula.data.resources.*;
 
 import lombok.Getter;
diff --git a/src/main/java/emu/nebula/data/resources/CharGemAttrGroupDef.java b/src/main/java/emu/nebula/data/custom/CharGemAttrGroupDef.java
similarity index 95%
rename from src/main/java/emu/nebula/data/resources/CharGemAttrGroupDef.java
rename to src/main/java/emu/nebula/data/custom/CharGemAttrGroupDef.java
index baad3c6..1329240 100644
--- a/src/main/java/emu/nebula/data/resources/CharGemAttrGroupDef.java
+++ b/src/main/java/emu/nebula/data/custom/CharGemAttrGroupDef.java
@@ -1,4 +1,4 @@
-package emu.nebula.data.resources;
+package emu.nebula.data.custom;
 
 import java.util.List;
 import java.util.Map;
@@ -6,6 +6,7 @@ import java.util.Map;
 import emu.nebula.data.BaseDef;
 import emu.nebula.data.GameData;
 import emu.nebula.data.ResourceType;
+import emu.nebula.data.resources.CharGemAttrValueDef;
 import emu.nebula.util.WeightedList;
 import it.unimi.dsi.fastutil.ints.IntArrayList;
 import it.unimi.dsi.fastutil.ints.IntList;
@@ -97,7 +98,7 @@ public class CharGemAttrGroupDef extends BaseDef {
             this.values = new WeightedList<>();
         }
         
-        protected void addValue(CharGemAttrValueDef value) {
+        public void addValue(CharGemAttrValueDef value) {
             this.values.add(value.getRarity(), value);
         }
         
diff --git a/src/main/java/emu/nebula/data/resources/CharGemSlotControlDef.java b/src/main/java/emu/nebula/data/resources/CharGemSlotControlDef.java
index a5074a0..2f17944 100644
--- a/src/main/java/emu/nebula/data/resources/CharGemSlotControlDef.java
+++ b/src/main/java/emu/nebula/data/resources/CharGemSlotControlDef.java
@@ -3,6 +3,7 @@ package emu.nebula.data.resources;
 import emu.nebula.data.BaseDef;
 import emu.nebula.data.GameData;
 import emu.nebula.data.ResourceType;
+import emu.nebula.data.custom.CharGemAttrGroupDef;
 import emu.nebula.util.CustomIntArray;
 import emu.nebula.util.Utils;
 import emu.nebula.util.WeightedList;