diff --git a/builtin/pack-redundant.c b/builtin/pack-redundant.c
index 72c815844d..cb1df1c761 100644
--- a/builtin/pack-redundant.c
+++ b/builtin/pack-redundant.c
@@ -442,6 +442,7 @@ static void minimize(struct pack_list **min)
 	/* return if there are no objects missing from the unique set */
 	if (missing->size == 0) {
 		*min = unique;
+		free(missing);
 		return;
 	}