diff --git a/library/Paybox/Config/Prod.php b/library/Paybox/Config/Prod.php
index b642c5a..282d711 100644
--- a/library/Paybox/Config/Prod.php
+++ b/library/Paybox/Config/Prod.php
@@ -16,7 +16,7 @@ class Paybox_Config_Prod
 
 	public $variables = array(
 			'SITE' => '5136925',
-			'RANG' => '001',
+			'RANG' => '01',
 			'IDENTIFIANT' => '533616985',
 	);
 
diff --git a/library/Paybox/Config/Test.php b/library/Paybox/Config/Test.php
index 5da337b..4cf5c7c 100644
--- a/library/Paybox/Config/Test.php
+++ b/library/Paybox/Config/Test.php
@@ -19,7 +19,7 @@ class Paybox_Config_Test
 
 	public $variables = array(
 			'SITE' => '5136925',
-			'RANG' => '001',
+			'RANG' => '01',
 			'IDENTIFIANT' => '533616985',
 	);