diff --git a/dlls/d3d8/tests/device.c b/dlls/d3d8/tests/device.c
index 819c1cd9443..9fc06c3c9d6 100644
--- a/dlls/d3d8/tests/device.c
+++ b/dlls/d3d8/tests/device.c
@@ -3151,6 +3151,7 @@ static void test_wndproc(void)
     ok(!expect_messages->message, "Expected message %#x for window %#x, but didn't receive it.\n",
             expect_messages->message, expect_messages->window);
     expect_messages = NULL;
+    flush_events();
     SetForegroundWindow(GetDesktopWindow());
     flush_events();