diff --git a/include/wx/msw/ole/oleutils.h b/include/wx/msw/ole/oleutils.h
index 9c070e9e0c..6409b6ffef 100644
--- a/include/wx/msw/ole/oleutils.h
+++ b/include/wx/msw/ole/oleutils.h
@@ -20,6 +20,8 @@
 
 #if wxUSE_OLE
 
+// ole2.h includes windows.h, so include wrapwin.h first
+#include "wx/msw/wrapwin.h"
 // get IUnknown, REFIID &c
 #include <ole2.h>
 #include "wx/intl.h"