diff --git a/isisd/isis_spf.c b/isisd/isis_spf.c
index 3b3e1fd973af..9cb964b96a96 100644
--- a/isisd/isis_spf.c
+++ b/isisd/isis_spf.c
@@ -873,6 +873,9 @@ static int isis_spf_process_lsp(struct isis_spftree *spftree,
 			    || (mt_router_info && !mt_router_info->overload));
 
 lspfragloop:
+	if (!lsp->tlvs)
+		return ISIS_OK;
+
 	if (lsp->hdr.seqno == 0) {
 		zlog_warn("%s: lsp with 0 seq_num - ignore", __func__);
 		return ISIS_WARNING;