diff --git a/core/phpunit.xml.dist b/core/phpunit.xml.dist
index 7690280aff57b0d5626472376c124ff903d52ae6..6e014f70d4d5d3857c4e2a83936eee2389475b5c 100644
--- a/core/phpunit.xml.dist
+++ b/core/phpunit.xml.dist
@@ -97,6 +97,9 @@
       <directory>../modules/*/tests</directory>
       <directory>../modules/*/*/src/Tests</directory>
       <directory>../modules/*/*/tests</directory>
+      <directory suffix=".api.php">./lib/**</directory>
+      <directory suffix=".api.php">./modules/**</directory>
+      <directory suffix=".api.php">../modules/**</directory>
     </exclude>
   </coverage>
 </phpunit>