diff --git a/tests/Functional/Filter/ExcludeTest.php b/tests/Functional/Filter/ExcludeTest.php
index 23b8bfc7..8e011148 100644
--- a/tests/Functional/Filter/ExcludeTest.php
+++ b/tests/Functional/Filter/ExcludeTest.php
@@ -22,6 +22,12 @@ public function testExcludeTestSuites(): void
         /** @var Filter $filter */
         $filter = $this->getService(Filter::class);
 
-        $this->assertCount(1, $filter->filterTestFiles());
+        $files = $filter->filterTestFiles();
+
+        $this->assertCount(1, $files);
+
+        $fileExploded = explode('/', $files[0]);
+
+        $this->assertSame('ThreeGreenTestStub.php', end($fileExploded));
     }
 }