diff --git a/mm/damon/sysfs-test.h b/mm/damon/sysfs-test.h
index 73bdce2452c1..6091d0b3618a 100644
--- a/mm/damon/sysfs-test.h
+++ b/mm/damon/sysfs-test.h
@@ -67,6 +67,7 @@ static void damon_sysfs_test_set_targets(struct kunit *test)
 	damon_destroy_ctx(ctx);
 	kfree(sysfs_targets->targets_arr);
 	kfree(sysfs_targets);
+	kfree(sysfs_target->regions);
 	kfree(sysfs_target);
 }