diff --git a/src/Symfony/Component/DependencyInjection/Container.php b/src/Symfony/Component/DependencyInjection/Container.php
index fff5e401ca..5becc3cf73 100644
--- a/src/Symfony/Component/DependencyInjection/Container.php
+++ b/src/Symfony/Component/DependencyInjection/Container.php
@@ -214,7 +214,7 @@ class Container implements IntrospectableContainerInterface
 
         $this->services[$id] = $service;
 
-        if (method_exists($this, $method = 'synchronize'.strtr($id, array('_' => '', '.' => '_')).'Service')) {
+        if (method_exists($this, $method = 'synchronize'.strtr($id, array('_' => '', '.' => '_', '\\' => '_')).'Service')) {
             $this->$method();
         }
 
@@ -243,7 +243,7 @@ class Container implements IntrospectableContainerInterface
         return isset($this->services[$id])
             || array_key_exists($id, $this->services)
             || isset($this->aliases[$id])
-            || method_exists($this, 'get'.strtr($id, array('_' => '', '.' => '_')).'Service')
+            || method_exists($this, 'get'.strtr($id, array('_' => '', '.' => '_', '\\' => '_')).'Service')
         ;
     }
 
@@ -291,7 +291,7 @@ class Container implements IntrospectableContainerInterface
 
         if (isset($this->methodMap[$id])) {
             $method = $this->methodMap[$id];
-        } elseif (method_exists($this, $method = 'get'.strtr($id, array('_' => '', '.' => '_')).'Service')) {
+        } elseif (method_exists($this, $method = 'get'.strtr($id, array('_' => '', '.' => '_', '\\' => '_')).'Service')) {
             // $method is set to the right value, proceed
         } else {
             if (self::EXCEPTION_ON_INVALID_REFERENCE === $invalidBehavior) {
diff --git a/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php b/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
index f2d0760192..e145c7a10c 100644
--- a/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
+++ b/src/Symfony/Component/DependencyInjection/Tests/ContainerTest.php
@@ -188,6 +188,7 @@ class ContainerTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($sc->__bar, $sc->get('bar'), '->get() returns the service for the given id');
         $this->assertEquals($sc->__foo_bar, $sc->get('foo_bar'), '->get() returns the service if a get*Method() is defined');
         $this->assertEquals($sc->__foo_baz, $sc->get('foo.baz'), '->get() returns the service if a get*Method() is defined');
+        $this->assertEquals($sc->__foo_baz, $sc->get('foo\\baz'), '->get() returns the service if a get*Method() is defined');
 
         $sc->set('bar', $bar = new \stdClass());
         $this->assertEquals($bar, $sc->get('bar'), '->get() prefers to return a service defined with set() than one defined with a getXXXMethod()');
@@ -259,6 +260,7 @@ class ContainerTest extends \PHPUnit_Framework_TestCase
         $this->assertTrue($sc->has('bar'), '->has() returns true if a get*Method() is defined');
         $this->assertTrue($sc->has('foo_bar'), '->has() returns true if a get*Method() is defined');
         $this->assertTrue($sc->has('foo.baz'), '->has() returns true if a get*Method() is defined');
+        $this->assertTrue($sc->has('foo\\baz'), '->has() returns true if a get*Method() is defined');
     }
 
     /**