diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveNamedArgumentsPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveNamedArgumentsPassTest.php
index c994ff99c3c1..17b8ebf31a00 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveNamedArgumentsPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/ResolveNamedArgumentsPassTest.php
@@ -16,7 +16,7 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\CaseSensitiveClass;
-use Symfony\Component\DependencyInjection\Tests\Fixtures\FactoryDummy;
+use Symfony\Component\DependencyInjection\Tests\Fixtures\FactoryDummyWithoutReturnTypes;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\NamedArgumentsDummy;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\SimilarArgumentsDummy;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\TestDefinition1;
@@ -119,16 +119,16 @@ public function testArgumentNotFound()
 
     /**
      * @expectedException \Symfony\Component\DependencyInjection\Exception\InvalidArgumentException
-     * @expectedExceptionMessage Invalid service "Symfony\Component\DependencyInjection\Tests\Fixtures\TestDefinition1": method "Symfony\Component\DependencyInjection\Tests\Fixtures\FactoryDummy::createTestDefinition1()" has no argument named "$notFound". Check your service definition.
+     * @expectedExceptionMessage Invalid service "Symfony\Component\DependencyInjection\Tests\Fixtures\TestDefinition1": method "Symfony\Component\DependencyInjection\Tests\Fixtures\FactoryDummyWithoutReturnTypes::createTestDefinition1()" has no argument named "$notFound". Check your service definition.
      */
     public function testCorrectMethodReportedInException()
     {
         $container = new ContainerBuilder();
 
-        $container->register(FactoryDummy::class, FactoryDummy::class);
+        $container->register(FactoryDummyWithoutReturnTypes::class, FactoryDummyWithoutReturnTypes::class);
 
         $definition = $container->register(TestDefinition1::class, TestDefinition1::class);
-        $definition->setFactory(array(FactoryDummy::class, 'createTestDefinition1'));
+        $definition->setFactory(array(FactoryDummyWithoutReturnTypes::class, 'createTestDefinition1'));
         $definition->setArguments(array('$notFound' => '123'));
 
         $pass = new ResolveNamedArgumentsPass();
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/FactoryDummy.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/FactoryDummy.php
index 04aa5fa28280..da984b562a39 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/FactoryDummy.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/FactoryDummy.php
@@ -33,10 +33,6 @@ public static function createSelf(): self
     public static function createParent(): parent
     {
     }
-
-    public function createTestDefinition1()
-    {
-    }
 }
 
 class FactoryParent
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/FactoryDummyWithoutReturnTypes.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/FactoryDummyWithoutReturnTypes.php
new file mode 100644
index 000000000000..f480a668b5c2
--- /dev/null
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/FactoryDummyWithoutReturnTypes.php
@@ -0,0 +1,19 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Tests\Fixtures;
+
+class FactoryDummyWithoutReturnTypes
+{
+    public function createTestDefinition1()
+    {
+    }
+}
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/TestDefinition1.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/TestDefinition1.php
new file mode 100644
index 000000000000..8ec76a9de63c
--- /dev/null
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/TestDefinition1.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\DependencyInjection\Tests\Fixtures;
+
+use Symfony\Component\DependencyInjection\Definition;
+
+class TestDefinition1 extends Definition
+{
+}