diff --git a/htdocs/core/class/conf.class.php b/htdocs/core/class/conf.class.php
index 9ba90d00e62..3bf1a273581 100644
--- a/htdocs/core/class/conf.class.php
+++ b/htdocs/core/class/conf.class.php
@@ -126,6 +126,7 @@ class Conf
 		$this->service			= new stdClass();
 		$this->contrat			= new stdClass();
 		$this->actions			= new stdClass();
+		$this->agenda			= new stdClass();
 		$this->commande			= new stdClass();
 		$this->propal			= new stdClass();
 		$this->facture			= new stdClass();