diff --git a/Source/Editor/Windows/SceneTreeWindow.cs b/Source/Editor/Windows/SceneTreeWindow.cs
index 6b401c2cd..ab6d2e262 100644
--- a/Source/Editor/Windows/SceneTreeWindow.cs
+++ b/Source/Editor/Windows/SceneTreeWindow.cs
@@ -603,7 +603,7 @@ namespace FlaxEditor.Windows
             _dragHandlers = null;
             _tree = null;
             _searchBox = null;
-            ScriptsBuilder.ScriptsReloadEnd += OnSearchBoxTextChanged;
+            ScriptsBuilder.ScriptsReloadEnd -= OnSearchBoxTextChanged;
 
             base.OnDestroy();
         }