diff --git a/plugins/askrene/layer.c b/plugins/askrene/layer.c
index 96a9ccb85072..77298440e785 100644
--- a/plugins/askrene/layer.c
+++ b/plugins/askrene/layer.c
@@ -112,7 +112,7 @@ static int canonicalize_node_order(const struct node_id **n1,
 {
 	const struct node_id *tmp;
 
-	if (*n1 < *n2)
+	if ((node_id_cmp(*n1, *n2) < 0)
 		return 0;
 	tmp = *n2;
 	*n2 = *n1;