diff --git a/winsup/cygwin/include/wchar.h b/winsup/cygwin/include/wchar.h
index 986db9881..c6ae520fd 100644
--- a/winsup/cygwin/include/wchar.h
+++ b/winsup/cygwin/include/wchar.h
@@ -13,8 +13,9 @@ details. */
 
 #include <sys/cdefs.h>
 
-/* Get wchar_t from <stddef.h>.  */
+/* Get wchar_t and wint_t from <stddef.h>.  */
 #define __need_wchar_t
+#define __need_wint_t
 #include <stddef.h>
 
 __BEGIN_DECLS