diff --git a/programs/rpcss/rpcss_main.c b/programs/rpcss/rpcss_main.c
index 661da4a9020..1d246ea7b9f 100644
--- a/programs/rpcss/rpcss_main.c
+++ b/programs/rpcss/rpcss_main.c
@@ -48,8 +48,6 @@
 #include <limits.h>
 #include <assert.h>
 
-#define NONAMELESSUNION
-#define NONAMELESSSTRUCT
 #include "windef.h"
 #include "winbase.h"
 #include "winnt.h"