diff --git a/src/ninegate-1.0/src/Cadoles/EdispatcherBundle/Entity/Datasource.php b/src/ninegate-1.0/src/Cadoles/EdispatcherBundle/Entity/Datasource.php
index 414f7c2a..2f4bda9a 100644
--- a/src/ninegate-1.0/src/Cadoles/EdispatcherBundle/Entity/Datasource.php
+++ b/src/ninegate-1.0/src/Cadoles/EdispatcherBundle/Entity/Datasource.php
@@ -24,7 +24,7 @@ class Datasource
     private $id;
 
     /**
-     * @ORM\Column(type="string", length=50, unique=true)
+     * @ORM\Column(type="string", length=128, unique=true)
      */
     private $username;