diff --git a/include/struct32.h b/include/struct32.h
index 758f8d7..6910c54 100644
--- a/include/struct32.h
+++ b/include/struct32.h
@@ -3,6 +3,8 @@
 #define __WINE_STRUCT32_H
 
 #include "winbase.h"
+#include "windef.h"
+#include "wingdi.h"
 #include "wine/winuser16.h"
 #include "queue.h"