diff --git a/configuration/using_parameters_in_dic.rst b/configuration/using_parameters_in_dic.rst
index 730043af714..c81fcf7fa14 100644
--- a/configuration/using_parameters_in_dic.rst
+++ b/configuration/using_parameters_in_dic.rst
@@ -106,7 +106,7 @@ be injected with this parameter via the extension as follows::
     {
         private $debug;
 
-        public function  __construct($debug)
+        public function __construct($debug)
         {
             $this->debug = (bool) $debug;
         }