diff --git a/isisd/isis_circuit.c b/isisd/isis_circuit.c
index a48afd2..01a9d1e 100644
--- a/isisd/isis_circuit.c
+++ b/isisd/isis_circuit.c
@@ -640,7 +640,7 @@
       zlog_err("Interface MTU %zu on %s is too low to support area lsp mtu %u!",
                isis_circuit_pdu_size(circuit), circuit->interface->name,
                circuit->area->lsp_mtu);
-      isis_circuit_down(circuit);
+      isis_circuit_update_all_srmflags(circuit, 0);
       return ISIS_ERROR;
     }