diff --git a/proto/babel/babel.c b/proto/babel/babel.c
index 67a59df6..a0ec3629 100644
--- a/proto/babel/babel.c
+++ b/proto/babel/babel.c
@@ -1570,7 +1570,7 @@ babel_if_notify(struct proto *P, unsigned flags, struct iface *iface)
 
   if (flags & IF_CHANGE_UP)
   {
-    struct babel_iface_config *ic = (void *) iface_patt_find(&cf->iface_list, iface, iface->addr);
+    struct babel_iface_config *ic = (void *) iface_patt_find(&cf->iface_list, iface, NULL);
 
     /* we only speak multicast */
     if (!(iface->flags & IF_MULTICAST))