diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c
index 08217af..ac1f018 100644
--- a/ospfd/ospf_packet.c
+++ b/ospfd/ospf_packet.c
@@ -1789,6 +1789,7 @@
     ospf_opaque_self_originated_lsa_received (nbr, mylsa_upds);
 
   list_delete (mylsa_upds);
+  list_delete (mylsa_acks);
 #endif /* HAVE_OPAQUE_LSA */
 
   assert (listcount (lsas) == 0);