diff --git a/ospfd/ospf_ism.c b/ospfd/ospf_ism.c
index 0875e92..829ea00 100644
--- a/ospfd/ospf_ism.c
+++ b/ospfd/ospf_ism.c
@@ -593,7 +593,7 @@
 	  OSPF_TIMER_OFF (oi->t_network_lsa_self);
 	}
 
-      ospf_lsa_unlock (oi->network_lsa_self);
+      ospf_lsa_unlock (&oi->network_lsa_self);
       oi->network_lsa_self = NULL;
     }