1 files changed, 1 insertions, 1 deletions

diff --git a/include/stdio.h b/include/stdio.h
index 520c6227f5da..db84d40f177a 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -299,7 +299,7 @@ __END_DECLS
 __BEGIN_DECLS
 int	 asprintf __P((char **, const char *, ...)) __printflike(2, 3);
 char	*ctermid_r __P((char *));
-const char *fmtcheck __P((const char *, const char *))
+__const char *fmtcheck __P((const char *, const char *))
 	__attribute__((__format_arg__(2)));
 char	*fgetln __P((FILE *, size_t *));
 int	 fpurge __P((FILE *));