diff --git a/ospfd/ospf_zebra.c b/ospfd/ospf_zebra.c
index 90bee21..462f67c 100644
--- a/ospfd/ospf_zebra.c
+++ b/ospfd/ospf_zebra.c
@@ -972,9 +972,9 @@
   if (!(rt = EXTERNAL_INFO (type)))
     return;
 
-  /* If exists previously invoked thread, then cancel it. */
+  /* If exists previously invoked thread, then let it continue. */
   if (ospf->t_distribute_update)
-    OSPF_TIMER_OFF (ospf->t_distribute_update);
+    return;
 
   /* Set timer. */
   ospf->t_distribute_update =