1 files changed, 1 insertions, 2 deletions
diff --git a/io/isatty.c b/io/isatty.c
index ea68464d2b..cf397740a8 100644
--- a/io/isatty.c
+++ b/io/isatty.c
@@ -20,8 +20,7 @@
 
 /* Return 1 if FD is a terminal, 0 if not.  */
 int
-__isatty (fd)
-     int fd;
+__isatty (int fd)
 {
   __set_errno (ENOSYS);
   return -1;