diff --git a/dlls/wininet/tests/http.c b/dlls/wininet/tests/http.c
index 72121d8b77e..0524ddf3fdc 100644
--- a/dlls/wininet/tests/http.c
+++ b/dlls/wininet/tests/http.c
@@ -6558,7 +6558,7 @@ static const struct notification_data notification_data[] = {
     },
     {
         async_send_request_ex_test2,
-        sizeof(async_send_request_ex_test)/sizeof(async_send_request_ex_test[0]),
+        ARRAY_SIZE(async_send_request_ex_test2),
         "POST",
         "test.winehq.org",
         "tests/post.php"