diff --git a/usr.sbin/ypldap/ypldap.h b/usr.sbin/ypldap/ypldap.h
--- a/usr.sbin/ypldap/ypldap.h
+++ b/usr.sbin/ypldap/ypldap.h
@@ -197,7 +197,7 @@
 int		 cmdline_symset(char *);
 
 /* ldapclient.c */
-pid_t		 ldapclient(int []);
+pid_t		 ldapclient(int [2]);
 
 /* ypldap.c */
 void		 purge_config(struct env *);