diff --git a/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php b/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php
index 573f1a35ca..d236fb7845 100644
--- a/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php
+++ b/src/Symfony/Component/Locale/Stub/StubIntlDateFormatter.php
@@ -416,12 +416,12 @@ class StubIntlDateFormatter
      *
      * @see    http://www.php.net/manual/en/intldateformatter.setlenient.php
      *
-     * @throws MethodNotImplementedException When $lenient is true
+     * @throws MethodArgumentValueNotImplementedException When $lenient is true
      */
     public function setLenient($lenient)
     {
         if ($lenient) {
-            throw new MethodNotImplementedException(__METHOD__);
+            throw new MethodArgumentValueNotImplementedException(__METHOD__, 'lenient', $lenient, 'Only the strict parser is supported');
         }
     }
 
diff --git a/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php b/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php
index 446ecc640f..7ec9096891 100644
--- a/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php
+++ b/src/Symfony/Component/Locale/Tests/Stub/StubIntlDateFormatterTest.php
@@ -906,7 +906,7 @@ class StubIntlDateFormatterTest extends LocaleTestCase
     }
 
     /**
-     * @expectedException Symfony\Component\Locale\Exception\MethodNotImplementedException
+     * @expectedException Symfony\Component\Locale\Exception\MethodArgumentValueNotImplementedException
      */
     public function testSetLenient()
     {