diff --git a/programs/winhlp32/winhelp.c b/programs/winhlp32/winhelp.c
index 17fe90c1e37..49fdf5dff66 100644
--- a/programs/winhlp32/winhelp.c
+++ b/programs/winhlp32/winhelp.c
@@ -29,7 +29,6 @@
 #include <stdlib.h>
 
 #define NONAMELESSUNION
-#define NONAMELESSSTRUCT
 
 #include "windef.h"
 #include "winbase.h"