diff --git a/reactos/subsystems/win32/win32k/ntuser/window.c b/reactos/subsystems/win32/win32k/ntuser/window.c
index 83e3bff4db8..42bd92d79b6 100644
--- a/reactos/subsystems/win32/win32k/ntuser/window.c
+++ b/reactos/subsystems/win32/win32k/ntuser/window.c
@@ -2054,6 +2054,7 @@ AllocErr:
    {
       /* FIXME: Cleanup. */
       DPRINT1("IntCreateWindowEx(): send CREATE message failed. No cleanup performed!\n");
+      IntUnlinkWindow(Window);
       RETURN((HWND)0);
    }