diff --git a/calendar/tests/TimezoneTest.php b/calendar/tests/TimezoneTest.php
index cd08aaeeda..9494ffc1c6 100644
--- a/calendar/tests/TimezoneTest.php
+++ b/calendar/tests/TimezoneTest.php
@@ -53,6 +53,7 @@ class TimezoneTest extends \EGroupware\Api\AppTest {
 	public function tearDown()
 	{
 		$this->bo->delete($this->cal_id);
+		// Delete again to remove from delete history
 		$this->bo->delete($this->cal_id);
 		$this->bo = null;