diff --git a/loader/dshow/test.c b/loader/dshow/test.c
index b7a0ec6a9e..53a971214a 100644
--- a/loader/dshow/test.c
+++ b/loader/dshow/test.c
@@ -1,6 +1,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include "wine/mmreg.h"
+#include "wine/vfw.h"
+
 #include "formats.h"
 #include "com.h"