diff --git a/src/Symfony/Component/HttpFoundation/ParameterBag.php b/src/Symfony/Component/HttpFoundation/ParameterBag.php
index 4560322671470..9400c1b7e4c61 100644
--- a/src/Symfony/Component/HttpFoundation/ParameterBag.php
+++ b/src/Symfony/Component/HttpFoundation/ParameterBag.php
@@ -268,7 +268,7 @@ public function filter($key, $default = null, $filter = FILTER_DEFAULT, $options
             }
         }
         if (is_bool($filter) || !isset($filters[$filter]) || is_array($deep)) {
-            @trigger_error('Passing the $deep boolean as 3rd argument to the '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0. Remove it altogether as the $deep argument will be removed in 3.0.', E_USER_ERROR);
+            @trigger_error('Passing the $deep boolean as 3rd argument to the '.__METHOD__.' method is deprecated since version 2.8 and will be removed in 3.0. Remove it altogether as the $deep argument will be removed in 3.0.', E_USER_DEPRECATED);
             $tmp = $deep;
             $deep = $filter;
             $filter = $options;