diff --git a/Source/Editor/CustomEditors/CustomEditor.cs b/Source/Editor/CustomEditors/CustomEditor.cs
index 8c3810c3c..79c00b38a 100644
--- a/Source/Editor/CustomEditors/CustomEditor.cs
+++ b/Source/Editor/CustomEditors/CustomEditor.cs
@@ -883,7 +883,7 @@ namespace FlaxEditor.CustomEditors
         /// </summary>
         protected virtual void ClearToken()
         {
-            ParentEditor.ClearToken();
+            ParentEditor?.ClearToken();
         }
     }
 }