diff --git a/src/Symfony/Component/DependencyInjection/Compiler/InlineServiceDefinitionsPass.php b/src/Symfony/Component/DependencyInjection/Compiler/InlineServiceDefinitionsPass.php
index c64348ed1de3b..a79e78b6b2a46 100644
--- a/src/Symfony/Component/DependencyInjection/Compiler/InlineServiceDefinitionsPass.php
+++ b/src/Symfony/Component/DependencyInjection/Compiler/InlineServiceDefinitionsPass.php
@@ -138,6 +138,6 @@ private function isInlineableDefinition($id, Definition $definition, ServiceRefe
             return false;
         }
 
-        return true;
+        return $this->container->getDefinition($ids[0])->isShared();
     }
 }
diff --git a/src/Symfony/Component/DependencyInjection/Tests/Compiler/InlineServiceDefinitionsPassTest.php b/src/Symfony/Component/DependencyInjection/Tests/Compiler/InlineServiceDefinitionsPassTest.php
index adaa4044f453c..4abe6143152c7 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/Compiler/InlineServiceDefinitionsPassTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/Compiler/InlineServiceDefinitionsPassTest.php
@@ -92,7 +92,7 @@ public function testProcessDoesInlineNonSharedService()
         $this->assertNotSame($container->getDefinition('bar'), $arguments[2]);
     }
 
-    public function testProcessInlinesMixedServicesLoop()
+    public function testProcessDoesNotInlineMixedServicesLoop()
     {
         $container = new ContainerBuilder();
         $container
@@ -108,7 +108,7 @@ public function testProcessInlinesMixedServicesLoop()
 
         $this->process($container);
 
-        $this->assertEquals($container->getDefinition('foo')->getArgument(0), $container->getDefinition('bar'));
+        $this->assertEquals(new Reference('bar'), $container->getDefinition('foo')->getArgument(0));
     }
 
     /**