diff --git a/PhpUnit/DefinitionHasArgumentConstraint.php b/PhpUnit/DefinitionHasArgumentConstraint.php
index 83133b2..5e58d68 100644
--- a/PhpUnit/DefinitionHasArgumentConstraint.php
+++ b/PhpUnit/DefinitionHasArgumentConstraint.php
@@ -4,6 +4,7 @@
 
 use PHPUnit\Framework\Constraint\Constraint;
 use PHPUnit\Framework\Constraint\IsEqual;
+use SebastianBergmann\Exporter\Exporter;
 use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\Exception\OutOfBoundsException;
 
@@ -12,9 +13,10 @@ final class DefinitionHasArgumentConstraint extends Constraint
     /**
      * @var int|string
      */
-    private $argumentIndex;
-    private $expectedValue;
-    private $checkExpectedValue;
+    private string|int $argumentIndex;
+    private mixed $expectedValue;
+    private bool $checkExpectedValue;
+    private Exporter $exporter;
 
     public function __construct($argumentIndex, $expectedValue, bool $checkExpectedValue = true)
     {
@@ -37,6 +39,7 @@ public function __construct($argumentIndex, $expectedValue, bool $checkExpectedV
         $this->argumentIndex = $argumentIndex;
         $this->expectedValue = $expectedValue;
         $this->checkExpectedValue = $checkExpectedValue;
+        $this->exporter = new Exporter();
     }
 
     public function toString(): string
@@ -98,6 +101,18 @@ private function evaluateArgumentValue(Definition $definition, bool $returnResul
     {
         $actualValue = $definition->getArgument($this->argumentIndex);
 
+        if (gettype($actualValue) !== gettype($this->expectedValue)) {
+            $this->fail(
+                $definition,
+                sprintf(
+                    'The value of argument named "%s" (%s) is not equal to the expected value (%s)',
+                    $this->argumentIndex,
+                    $this->exporter->export($actualValue),
+                    $this->exporter->export($this->expectedValue)
+                )
+            );
+        }
+
         $constraint = new IsEqual($this->expectedValue);
 
         if (!$constraint->evaluate($actualValue, '', true)) {
@@ -109,15 +124,15 @@ private function evaluateArgumentValue(Definition $definition, bool $returnResul
                 $message = sprintf(
                     'The value of argument named "%s" (%s) is not equal to the expected value (%s)',
                     $this->argumentIndex,
-                    $this->exporter()->export($actualValue),
-                    $this->exporter()->export($this->expectedValue)
+                    $this->exporter->export($actualValue),
+                    $this->exporter->export($this->expectedValue)
                 );
             } else {
                 $message = sprintf(
                     'The value of argument with index %d (%s) is not equal to the expected value (%s)',
                     $this->argumentIndex,
-                    $this->exporter()->export($actualValue),
-                    $this->exporter()->export($this->expectedValue)
+                    $this->exporter->export($actualValue),
+                    $this->exporter->export($this->expectedValue)
                 );
             }
 
diff --git a/Tests/Fixtures/MatthiasDependencyInjectionTestExtension.php b/Tests/Fixtures/MatthiasDependencyInjectionTestExtension.php
index 38f1017..f5e2e1d 100644
--- a/Tests/Fixtures/MatthiasDependencyInjectionTestExtension.php
+++ b/Tests/Fixtures/MatthiasDependencyInjectionTestExtension.php
@@ -7,6 +7,7 @@
 use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\Extension\ExtensionInterface;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
+use Symfony\Component\DependencyInjection\Reference;
 
 class MatthiasDependencyInjectionTestExtension implements ExtensionInterface
 {
@@ -31,6 +32,11 @@ public function load(array $config, ContainerBuilder $container): void
 
         // add an alias to an existing service
         $container->setAlias('manual_alias', 'service_id');
+
+        // add a reference to an existing service
+        $definition = new Definition('manual_with_reference');
+        $definition->addArgument(new Reference('manual_service_id'));
+        $container->setDefinition('manual_with_reference', $definition);
     }
 
     public function getAlias()
diff --git a/Tests/PhpUnit/AbstractExtensionTestCaseTest.php b/Tests/PhpUnit/AbstractExtensionTestCaseTest.php
index 0c23943..7f97115 100644
--- a/Tests/PhpUnit/AbstractExtensionTestCaseTest.php
+++ b/Tests/PhpUnit/AbstractExtensionTestCaseTest.php
@@ -178,6 +178,19 @@ public function if_definition_has_argument_but_with_wrong_value_it_fails(): void
         $this->assertContainerBuilderHasServiceDefinitionWithArgument('manual_service_id', 1, 'wrong value');
     }
 
+    /**
+     * @test
+     */
+    public function if_definition_has_argument_but_with_wrong_value_it_fails1(): void
+    {
+        $this->load();
+
+        $this->expectException(ExpectationFailedException::class);
+        $this->expectExceptionMessage('The value of argument named "0"');
+
+        $this->assertContainerBuilderHasServiceDefinitionWithArgument('manual_with_reference', 0, 'manual_service_id');
+    }
+
     /**
      * @test
      */