diff --git a/src/Symfony/Component/HttpFoundation/Request.php b/src/Symfony/Component/HttpFoundation/Request.php
index df021f0919..b868bd912c 100644
--- a/src/Symfony/Component/HttpFoundation/Request.php
+++ b/src/Symfony/Component/HttpFoundation/Request.php
@@ -526,7 +526,7 @@ class Request
      */
     public function hasSession()
     {
-        return null !== $this->session && $this->session->isStarted();
+        return null !== $this->session;
     }
 
     /**
diff --git a/src/Symfony/Component/HttpFoundation/Session/SessionInterface.php b/src/Symfony/Component/HttpFoundation/Session/SessionInterface.php
index e84590b42e..a4d5dccf49 100644
--- a/src/Symfony/Component/HttpFoundation/Session/SessionInterface.php
+++ b/src/Symfony/Component/HttpFoundation/Session/SessionInterface.php
@@ -177,13 +177,11 @@ interface SessionInterface
     function clear();
 
     /**
-     * Check if a session was started
+     * Checks if the session was started.
      *
-     * @api
-     *
-     * @return boolean
+     * @return Boolean
      */
-    public function isStarted();
+    function isStarted();
 
     /**
      * Registers a SessionBagInterface with the session.
diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/MockArraySessionStorage.php b/src/Symfony/Component/HttpFoundation/Session/Storage/MockArraySessionStorage.php
index a49e54b56f..b18d071d95 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Storage/MockArraySessionStorage.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Storage/MockArraySessionStorage.php
@@ -205,9 +205,7 @@ class MockArraySessionStorage implements SessionStorageInterface
     }
 
     /**
-     * Check if the session was started or not
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function isStarted()
     {
diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php b/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
index b401dda197..ec753ec0de 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
@@ -290,9 +290,7 @@ class NativeSessionStorage implements SessionStorageInterface
     }
 
     /**
-     * Check if the session was started or not
-     *
-     * @return boolean
+     * {@inheritdoc}
      */
     public function isStarted()
     {
diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/SessionStorageInterface.php b/src/Symfony/Component/HttpFoundation/Session/Storage/SessionStorageInterface.php
index c07ed7fb6f..0673d97a14 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Storage/SessionStorageInterface.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Storage/SessionStorageInterface.php
@@ -35,6 +35,13 @@ interface SessionStorageInterface
      */
     function start();
 
+    /**
+     * Checks if the session is started.
+     *
+     * @return boolean True if started, false otherwise.
+     */
+    function isStarted();
+
     /**
      * Returns the session ID
      *
diff --git a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
index 8157acf7bf..9a847554b3 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
@@ -949,7 +949,6 @@ class RequestTest extends \PHPUnit_Framework_TestCase
 
         $this->assertFalse($request->hasSession());
         $request->setSession(new Session(new MockArraySessionStorage()));
-        $request->getSession()->start();
         $this->assertTrue($request->hasSession());
     }
 
@@ -961,7 +960,6 @@ class RequestTest extends \PHPUnit_Framework_TestCase
         $request->cookies->set('MOCKSESSID', 'foo');
         $this->assertFalse($request->hasPreviousSession());
         $request->setSession(new Session(new MockArraySessionStorage()));
-        $request->getSession()->start();
         $this->assertTrue($request->hasPreviousSession());
     }
 
diff --git a/src/Symfony/Component/Security/Tests/Http/Firewall/ContextListenerTest.php b/src/Symfony/Component/Security/Tests/Http/Firewall/ContextListenerTest.php
index d6723785ee..646ed2357a 100644
--- a/src/Symfony/Component/Security/Tests/Http/Firewall/ContextListenerTest.php
+++ b/src/Symfony/Component/Security/Tests/Http/Firewall/ContextListenerTest.php
@@ -85,7 +85,6 @@ class ContextListenerTest extends \PHPUnit_Framework_TestCase
     protected function runSessionOnKernelResponse($newToken, $original = null)
     {
         $session = new Session(new MockArraySessionStorage());
-        $session->start();
 
         if ($original !== null) {
             $session->set('_security_session', $original);