diff --git a/tests/RoadRunnerHttpApplicationRunnerTest.php b/tests/RoadRunnerHttpApplicationRunnerTest.php
index c5deb71..bfc90ec 100644
--- a/tests/RoadRunnerHttpApplicationRunnerTest.php
+++ b/tests/RoadRunnerHttpApplicationRunnerTest.php
@@ -57,7 +57,7 @@ public function testUnsupportedMode(): void
         $runner = $this->createRunner();
 
         $this->expectException(RuntimeException::class);
-        $this->expectExceptionMessage('Unsupported mode "invalid", modes are supported: "http", "temporal".');
+        $this->expectExceptionMessage('Unsupported mode "invalid", supported modes are: "http", "temporal".');
         $runner->run();
     }