diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 367feb0..fa94d8c 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -12,7 +12,7 @@
 >
     <testsuites>
         <testsuite name="Laravel Tinker Test Suite">
-            <directory suffix=".php">./tests/</directory>
+            <directory suffix="Test.php">./tests/</directory>
         </testsuite>
     </testsuites>
 </phpunit>