diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c
index 587484f..c6cd018 100644
--- a/ospfd/ospf_packet.c
+++ b/ospfd/ospf_packet.c
@@ -3822,6 +3822,8 @@
 
   if (rn->info == NULL)
     rn->info = list_new ();
+  else
+    route_unlock_node (rn);
 
   for (ALL_LIST_ELEMENTS_RO (update, node, lsa))
     listnode_add (rn->info, ospf_lsa_lock (lsa)); /* oi->ls_upd_queue */