diff --git a/properties.py b/properties.py
index 8ea6ea4..ae09271 100644
--- a/properties.py
+++ b/properties.py
@@ -91,7 +91,7 @@ def register():
     bpy.types.Collection.rig_picker = bpy.props.PointerProperty(type=RP_PG_collection_ui_settings)
 
 def unregister():
-    del bpy.types.Scene.rig_picker
+    del bpy.types.Collection.rig_picker
     del bpy.types.Object.rig_picker
     del bpy.types.Armature.rig_picker