diff --git a/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php b/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
index 32979e8b45..4deb58eca2 100644
--- a/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
+++ b/src/Symfony/Component/HttpFoundation/Session/Storage/NativeSessionStorage.php
@@ -81,6 +81,7 @@ class NativeSessionStorage implements SessionStorageInterface
      * name, "PHPSESSID"
      * referer_check, ""
      * serialize_handler, "php"
+     * use_strict_mode, "0"
      * use_cookies, "1"
      * use_only_cookies, "1"
      * use_trans_sid, "0"
@@ -335,7 +336,7 @@ class NativeSessionStorage implements SessionStorageInterface
             'entropy_file', 'entropy_length', 'gc_divisor',
             'gc_maxlifetime', 'gc_probability', 'hash_bits_per_character',
             'hash_function', 'name', 'referer_check',
-            'serialize_handler', 'use_cookies',
+            'serialize_handler', 'use_strict_mode', 'use_cookies',
             'use_only_cookies', 'use_trans_sid', 'upload_progress.enabled',
             'upload_progress.cleanup', 'upload_progress.prefix', 'upload_progress.name',
             'upload_progress.freq', 'upload_progress.min-freq', 'url_rewriter.tags',