diff --git a/src/Eto/Widget.cs b/src/Eto/Widget.cs
index f498bc005..d56dfc6c5 100644
--- a/src/Eto/Widget.cs
+++ b/src/Eto/Widget.cs
@@ -539,7 +539,7 @@ protected virtual void Dispose(bool disposing)
 	{
 		if (disposing)
 		{
-			if (Handler is IDisposable handler)
+			if (!IsDisposed && Handler is IDisposable handler)
 				handler.Dispose();
 			IsDisposed = true;
 			Handler = null;
@@ -560,4 +560,4 @@ public override string ToString()
 		else
 			return base.ToString();
 	}
-}
\ No newline at end of file
+}