diff --git a/tests/phpunit.xml b/tests/phpunit.xml
index 5d004b73074fd38d4951679986dae5844aaec224..f2fb53a2db882c95329b321a3ff512df9fe19afe 100644
--- a/tests/phpunit.xml
+++ b/tests/phpunit.xml
@@ -11,7 +11,7 @@
 	<!-- filters for code coverage -->
 	<filter>
 		<whitelist>
-			<directory suffix=".php">../mail</directory>
+			<directory suffix=".php">../</directory>
 			<exclude>
 				<directory suffix=".php">../mail/l10n</directory>
 				<directory suffix=".php">../mail/tests</directory>