diff --git a/revision.c b/revision.c
index 63f17c085c..307f41e889 100644
--- a/revision.c
+++ b/revision.c
@@ -2951,6 +2951,7 @@ void release_revisions(struct rev_info *revs)
 	release_revisions_cmdline(&revs->cmdline);
 	list_objects_filter_release(&revs->filter);
 	clear_pathspec(&revs->prune_data);
+	date_mode_release(&revs->date_mode);
 	release_revisions_mailmap(revs->mailmap);
 	free_grep_patterns(&revs->grep_filter);
 	diff_free(&revs->pruning);