diff --git a/parse.h b/parse.h
index 5e727185a..9d736f13b 100644
--- a/parse.h
+++ b/parse.h
@@ -109,7 +109,7 @@ extern int top;
  */
 int addr_matches	__P((char *));
 int command_matches	__P((char *, char *, char *, char *));
-int hostname_matches	__P((char *, char *));
+int hostname_matches	__P((char *, char *, char *));
 int netgr_matches	__P((char *, char *, char *, char *));
 int usergr_matches	__P((char *, char *));