diff --git a/Ink Canvas/MainWindow_cs/MW_ClipboardHandler.cs b/Ink Canvas/MainWindow_cs/MW_ClipboardHandler.cs
index ba215c4f..1dc7e81c 100644
--- a/Ink Canvas/MainWindow_cs/MW_ClipboardHandler.cs	
+++ b/Ink Canvas/MainWindow_cs/MW_ClipboardHandler.cs	
@@ -46,7 +46,7 @@ namespace Ink_Canvas
                 ClipboardNotification.ClipboardUpdate += OnClipboardUpdate;
                 isClipboardMonitoringEnabled = true;
 
-                if (IsSourceInitialized)
+                if (new WindowInteropHelper(this).Handle != IntPtr.Zero)
                     OnSourceInitializedForClipboard(this, EventArgs.Empty);
                 else
                     SourceInitialized += OnSourceInitializedForClipboard;