diff --git a/qga/vss-win32/requester.h b/qga/vss-win32/requester.h
index cffec01791..374f9b8d16 100644
--- a/qga/vss-win32/requester.h
+++ b/qga/vss-win32/requester.h
@@ -13,6 +13,7 @@
 #ifndef VSS_WIN32_REQUESTER_H
 #define VSS_WIN32_REQUESTER_H
 
+#include <basetyps.h>           /* STDAPI */
 #include "qemu/compiler.h"
 
 #ifdef __cplusplus