1 files changed, 1 insertions, 0 deletions
diff --git a/src/list.c b/src/list.c
index 0573512..77a4042 100644
--- a/src/list.c
+++ b/src/list.c
@@ -70,6 +70,7 @@ struct link *
 list_pop_front(struct link *head)
 {
 	ASSERT(head != NULL);
+	if (!head->next) return NULL;
 	return link_pop(head->next);
 }