diff --git a/libs/port/mkstemps.c b/libs/port/mkstemps.c
index f6674334744..7dd1672c863 100644
--- a/libs/port/mkstemps.c
+++ b/libs/port/mkstemps.c
@@ -64,9 +64,9 @@ reading and writing.
 */
 
 int
-mkstemps (template, suffix_len)
-     char *template;
-     int suffix_len;
+mkstemps (
+     char *template,
+     int suffix_len)
 {
   static const char letters[]
     = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";