diff --git a/src/or/dirserv.c b/src/or/dirserv.c
index 48e01f8bcf..c17bbafe80 100644
--- a/src/or/dirserv.c
+++ b/src/or/dirserv.c
@@ -881,7 +881,7 @@ static digestmap_t *cached_v2_networkstatus = NULL;
* directory published on when, unless when is older than
* the last value, or too far in the future.
*
- * Does not copy directory; free it if it isn't used.
+ * Does not copy directory; frees it if it isn't used.
*/
static void
set_cached_dir(cached_dir_t *d, char *directory, time_t when)