diff --git a/htdocs/ticket/class/cticketcategory.class.php b/htdocs/ticket/class/cticketcategory.class.php
index 820cc281c89..dbe37cb4be4 100644
--- a/htdocs/ticket/class/cticketcategory.class.php
+++ b/htdocs/ticket/class/cticketcategory.class.php
@@ -102,7 +102,7 @@ class CTicketCategory extends CommonObject
 	 */
 	public $fields = array(
 		'rowid' => array('type' => 'integer', 'label' => 'TechnicalID', 'enabled' => 1, 'visible' => -1, 'notnull' => 1, 'position' => 10),
-		'entity' => array('type' => 'integer', 'label' => 'Entity', 'default' => 1, 'enabled' => 1, 'visible' => -2, 'position' => 15, 'index' => 1),
+		'entity' => array('type' => 'integer', 'label' => 'Entity', 'default' => '1', 'enabled' => 1, 'visible' => -2, 'position' => 15, 'index' => 1),
 		'code' => array('type' => 'varchar(32)', 'label' => 'Code', 'enabled' => 1, 'visible' => -1, 'notnull' => 1, 'position' => 20),
 		'pos' => array('type' => 'integer', 'label' => 'Pos', 'enabled' => 1, 'visible' => -1, 'notnull' => 1, 'position' => 25),
 		'label' => array('type' => 'varchar(128)', 'label' => 'Label', 'enabled' => 1, 'visible' => -1, 'notnull' => 1, 'position' => 30, 'showoncombobox' => 1),