diff --git a/nest/rt-table.c b/nest/rt-table.c
index 2c0f1c63..2ed622cc 100644
--- a/nest/rt-table.c
+++ b/nest/rt-table.c
@@ -614,9 +614,6 @@ rt_notify_basic(struct channel *c, const net_addr *net, rte *new, rte *old)
   if (old && !bmap_test(&c->export_map, old->id))
     old = NULL;
 
-  if (old && (old->sender == c->in_req.hook))
-    bug("bad-behaved pipe");
-
   if (!new && !old)
     return;