diff --git a/src/Symfony/Component/DependencyInjection/Compiler/CheckTypeDeclarationsPass.php b/src/Symfony/Component/DependencyInjection/Compiler/CheckTypeDeclarationsPass.php
index 2147d53f1263..ccd11e9d48ed 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/CheckTypeDeclarationsPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/CheckTypeDeclarationsPass.php
@@ -152,6 +152,10 @@ private function checkType(Definition $checkedDefinition, $value, \ReflectionPar
                 return;
             }
 
+            if ('object' === $type) {
+                return;
+            }
+
             if (is_a($class, $type, true)) {
                 return;
             }
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/CheckTypeDeclarationsPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/CheckTypeDeclarationsPassTest.php
index 51bc7c6779d2..40f65f0e31d9 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/CheckTypeDeclarationsPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/CheckTypeDeclarationsPassTest.php
@@ -15,12 +15,14 @@
 use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
 use Symfony\Component\DependencyInjection\Compiler\CheckTypeDeclarationsPass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Definition;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\CheckTypeDeclarationsPass\Bar;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\CheckTypeDeclarationsPass\BarMethodCall;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\CheckTypeDeclarationsPass\BarOptionalArgument;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\CheckTypeDeclarationsPass\BarOptionalArgumentNotNull;
 use Symfony\Component\DependencyInjection\Tests\Fixtures\CheckTypeDeclarationsPass\Foo;
+use Symfony\Component\DependencyInjection\Tests\Fixtures\CheckTypeDeclarationsPass\FooObject;
 
 /**
  * @author Nicolas Grekas <p@tchwork.com>
@@ -390,6 +392,18 @@ public function testProcessSuccessWhenPassingAnIteratorArgumentToIterable()
         $this->addToAssertionCount(1);
     }
 
+    public function testProcessSuccessWhenPassingDefintionForObjectType()
+    {
+        $container = new ContainerBuilder();
+
+        $container->register('foo_object', FooObject::class)
+            ->addArgument(new Definition(Foo::class));
+
+        (new CheckTypeDeclarationsPass(true))->process($container);
+
+        $this->addToAssertionCount(1);
+    }
+
     public function testProcessFactory()
     {
         $container = new ContainerBuilder();
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Fixtures/CheckTypeDeclarationsPass/FooObject.php b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/CheckTypeDeclarationsPass/FooObject.php
new file mode 100644
index 000000000000..44cfaf0d0a3c
--- /dev/null
+++ b/src/Symfony/Component/DependencyInjection/Tests/Fixtures/CheckTypeDeclarationsPass/FooObject.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Symfony\Component\DependencyInjection\Tests\Fixtures\CheckTypeDeclarationsPass;
+
+class FooObject
+{
+    public function __construct(object $foo)
+    {
+    }
+}