diff --git a/dlls/d3d9/tests/d3d9ex.c b/dlls/d3d9/tests/d3d9ex.c
index 06105c25d66..f65996a8ed1 100644
--- a/dlls/d3d9/tests/d3d9ex.c
+++ b/dlls/d3d9/tests/d3d9ex.c
@@ -3145,7 +3145,9 @@ static void test_wndproc(void)
          * immediately restores the device on activation. There are plenty of WM_WINDOWPOSCHANGED
          * messages that are generated by ShowWindow, so testing for their absence is pointless. */
         ShowWindow(focus_window, SW_MINIMIZE);
+        flush_events();
         ShowWindow(focus_window, SW_RESTORE);
+        flush_events();
         SetForegroundWindow(focus_window);
         flush_events();