diff --git a/nest/iface.h b/nest/iface.h
index 8540a4de..379f566c 100644
--- a/nest/iface.h
+++ b/nest/iface.h
@@ -121,7 +121,7 @@ void neigh_if_up(struct iface *);
 void neigh_if_down(struct iface *);
 void neigh_init(struct pool *);
 
-extern int if_connected(ip_addr *a, struct iface *i) /* -1=error, 1=match, 0=no match */
+extern int if_connected(ip_addr *a, struct iface *i); /* -1=error, 1=match, 0=no match */
 
 /*
  *	Interface Pattern Lists
diff --git a/proto/rip/rip.c b/proto/rip/rip.c
index 1ba1a24e..f51773f5 100644
--- a/proto/rip/rip.c
+++ b/proto/rip/rip.c
@@ -101,7 +101,7 @@ rip_tx_prepare(struct proto *p, ip_addr daddr, struct rip_block *b, struct rip_e
   b->pxlen = e->n.pxlen;
 #endif
   b->metric  = htonl( e->metric );
-  if (if_connected(e->whotoldme, rif->iface)) {
+  if (if_connected(&e->whotoldme, rif->iface)) {
     DBG( "(split horizon)" );
     b->metric = htonl( P_CF->infinity );
   }