diff --git a/src/ieee1905/topologyd.c b/src/ieee1905/topologyd.c
index 594ab09a069ea1fae9908c05b11996953517d107..27bdbdac0b4bf472164f0e2b7bba8799839c3000 100644
--- a/src/ieee1905/topologyd.c
+++ b/src/ieee1905/topologyd.c
@@ -1521,10 +1521,10 @@ void topologyd_dump_node(struct blob_buf *bb, struct node *p, int is_self)
 			size = sizeof(behind_mac_str);
 
 			hwaddr_ntoa(p->l2_nbr[j].behind_intf_addr[k], mac_str);
-			if (k != 0)
-				snprintf(behind_mac_str + len, size - len, "%s,", behind_mac_str);
+		//	if (k != 0)
+		//		snprintf(behind_mac_str + len, size - len, "%s,", behind_mac_str);
 
-			snprintf(behind_mac_str + len,  size - len, "%s", mac_str);
+			snprintf(behind_mac_str + len,  size , "%s", mac_str);
 		}
 		blobmsg_add_string(bb, "behind_mac_id", behind_mac_str);
 		blobmsg_close_table(bb, table);