diff --git a/string-list.c b/string-list.c
index c5aa076..9584fa6 100644
--- a/string-list.c
+++ b/string-list.c
@@ -59,13 +59,7 @@
 
 struct string_list_item *string_list_insert(struct string_list *list, const char *string)
 {
-	return string_list_insert_at_index(list, -1, string);
-}
-
-struct string_list_item *string_list_insert_at_index(struct string_list *list,
-						     int insert_at, const char *string)
-{
-	int index = add_entry(insert_at, list, string);
+	int index = add_entry(-1, list, string);
 
 	if (index < 0)
 		index = -1 - index;