diff --git a/tests/unit/Container/ReadOnlyContainerTest.php b/tests/unit/Container/ReadOnlyContainerTest.php
index d81ab13..ff6f240 100644
--- a/tests/unit/Container/ReadOnlyContainerTest.php
+++ b/tests/unit/Container/ReadOnlyContainerTest.php
@@ -205,8 +205,7 @@ public function testServiceExtensionsBackwardCompatibility(): void
     public function testServiceExtensionsBackwardCompatibilityBreaksOnWrongType(): void
     {
         $this->expectException(\TypeError::class);
-        /** @phpstan-ignore-next-line  */
-        new Container([], [], ServiceExtensions::class, []);
+        $container = new Container([], [], ServiceExtensions::class, []);
     }
 
     /**