diff --git a/Editor/AddressableImportSettings.cs b/Editor/AddressableImportSettings.cs
index df49fac..3d2afc2 100644
--- a/Editor/AddressableImportSettings.cs
+++ b/Editor/AddressableImportSettings.cs
@@ -19,7 +19,7 @@ public class AddressableImportSettings : ScriptableObject
 #if ODIN_INSPECTOR
     [Sirenix.OdinInspector.ListDrawerSettings(HideAddButton = false,Expanded = false,DraggableItems = true,HideRemoveButton = false)]
 #endif
-    public List<AddressableImportRule> rules;
+    public List<AddressableImportRule> rules = new List<AddressableImportRule>();
 
     [ButtonMethod]
     public void Save()