diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 36a109d68a..a768da8c23 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -50,12 +50,15 @@
         <log type="junit" target="build/logs/junit.xml" logIncompleteSkipped="false"/>
     </logging>
     <filter>
-        <!-- we don't care about coverage of embedded libraries -->
-        <blacklist>
-            <directory suffix=".php">libraries/tcpdf</directory>
-            <directory suffix=".php">libraries/bfShapeFiles</directory>
-            <directory suffix=".php">libraries/php-gettext</directory>
-            <directory suffix=".inc">libraries/php-gettext</directory>
-        </blacklist>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">.</directory>
+            <exclude>
+                <!-- we don't care about coverage of embedded libraries -->
+                <directory suffix=".php">libraries/tcpdf</directory>
+                <directory suffix=".php">libraries/bfShapeFiles</directory>
+                <directory suffix=".php">libraries/php-gettext</directory>
+                <directory suffix=".inc">libraries/php-gettext</directory>
+            </exclude>
+        </whitelist>
     </filter>
 </phpunit>