diff --git a/src/flb_config_map.c b/src/flb_config_map.c
index 0b40b7becb7..b5ad849cfbd 100644
--- a/src/flb_config_map.c
+++ b/src/flb_config_map.c
@@ -97,6 +97,7 @@ static struct mk_list *parse_string_map_to_list(struct flb_config_map *map, char
 
     if (ret == -1) {
         flb_error("[config map] error reading list of options");
+        flb_slist_destroy(list);
         flb_free(list);
         return NULL;
     }