diff --git a/core/phpunit.xml.dist b/core/phpunit.xml.dist
index 743bf08..db81207 100644
--- a/core/phpunit.xml.dist
+++ b/core/phpunit.xml.dist
@@ -15,8 +15,8 @@
     <testsuite name="unit">
       <directory>./tests/Drupal/Tests</directory>
       <directory>./modules/*/tests/src/Unit</directory>
-      <directory>../modules/*/tests/src/Unit</directory>
-      <directory>../sites/*/modules/*/tests/src/Unit</directory>
+      <directory>../modules</directory>
+      <directory>../sites</directory>
       <!-- Exclude Composer's vendor directory so we don't run tests there. -->
       <exclude>./vendor</exclude>
       <!-- Exclude Drush tests. -->