diff --git a/src/UnicaenZimbra/Entity/Entity.php b/src/UnicaenZimbra/Entity/Entity.php
index 40e9eff01443b5b79b60c77bcdb2975fe26f0365..25500f262d859f9d7aee90584d498d71349b7606 100644
--- a/src/UnicaenZimbra/Entity/Entity.php
+++ b/src/UnicaenZimbra/Entity/Entity.php
@@ -81,7 +81,7 @@ abstract class Entity
         return $changes;
     }
 
-    protected static function convertFromXml($data)
+    public static function convertFromXml($data)
     {
         switch ($data) {
             case 'FALSE':
@@ -93,7 +93,7 @@ abstract class Entity
         }
     }
     
-    protected static function convertToXml($data)
+    public static function convertToXml($data)
     {
         if (is_bool($data)){
             if ($data) return 'TRUE'; else return 'FALSE';