diff --git a/core/phpunit.xml.dist b/core/phpunit.xml.dist
index b1fb73d..2620fe9 100644
--- a/core/phpunit.xml.dist
+++ b/core/phpunit.xml.dist
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<!-- TODO set checkForUnintentionallyCoveredCode once https://www.drupal.org/node/2626832 is resolved. -->
+<!-- TODO set checkForUnintentionallyCoveredCode="true" once https://www.drupal.org/node/2626832 is resolved. -->
 <phpunit bootstrap="tests/bootstrap.php" colors="true"
          beStrictAboutTestsThatDoNotTestAnything="true"
          beStrictAboutOutputDuringTests="true"