diff --git a/ospfd/ospfd.c b/ospfd/ospfd.c
index 32580cc..c951a29 100644
--- a/ospfd/ospfd.c
+++ b/ospfd/ospfd.c
@@ -998,8 +998,8 @@
   if (!ospf)
     ospf = ospf_lookup ();
 
-  /* Router-ID must be configured. */
-  if (ospf->router_id.s_addr == 0)
+  /* OSPF must be on and Router-ID must be configured. */
+  if (!ospf || ospf->router_id.s_addr == 0)
     return;
   
   /* Run each netowrk for this interface. */