diff --git a/newlib/libc/include/locale.h b/newlib/libc/include/locale.h
index 446dbd9d4..7feb881aa 100644
--- a/newlib/libc/include/locale.h
+++ b/newlib/libc/include/locale.h
@@ -71,10 +71,11 @@ struct _reent;
 char *_EXFUN(_setlocale_r,(struct _reent *, int, const char *));
 struct lconv *_EXFUN(_localeconv_r,(struct _reent *));
 
-locale_t _newlocale_r (struct _reent *, int, const char *, struct __locale_t *);
+struct __locale_t *_newlocale_r (struct _reent *, int, const char *,
+				 struct __locale_t *);
 void _freelocale_r (struct _reent *, struct __locale_t *);
-locale_t _duplocale_r (struct _reent *, struct __locale_t *);
-locale_t _uselocale_r (struct _reent *, struct __locale_t *);
+struct __locale_t *_duplocale_r (struct _reent *, struct __locale_t *);
+struct __locale_t *_uselocale_r (struct _reent *, struct __locale_t *);
 
 #ifndef _REENT_ONLY