diff --git a/Source/Engine/UI/GUI/Control.cs b/Source/Engine/UI/GUI/Control.cs
index 8b2401428..427c1aa8f 100644
--- a/Source/Engine/UI/GUI/Control.cs
+++ b/Source/Engine/UI/GUI/Control.cs
@@ -987,7 +987,7 @@ namespace FlaxEngine.GUI
         {
             // Hide tooltip
             Tooltip?.Hide();
-            Root.DoDragDrop(data);
+            Root?.DoDragDrop(data);
         }
 
         #endregion