diff --git a/ospfd/ospf_dump.c b/ospfd/ospf_dump.c
index 861f9d3516..65d6e09b6d 100644
--- a/ospfd/ospf_dump.c
+++ b/ospfd/ospf_dump.c
@@ -2133,6 +2133,7 @@ config_write_debug (struct vty *vty)
 
   struct ospf *ospf;
   char str[16];
+  memset (str, 0, 16);
 
   if ((ospf = ospf_lookup()) == NULL)
     return CMD_SUCCESS;