diff --git a/htdocs/comm/action/class/actioncomm.class.php b/htdocs/comm/action/class/actioncomm.class.php
index a406bb56463..48abc53a166 100644
--- a/htdocs/comm/action/class/actioncomm.class.php
+++ b/htdocs/comm/action/class/actioncomm.class.php
@@ -389,6 +389,9 @@ class ActionComm extends CommonObject
 	const EVENT_FINISHED = 100;
 
 
+	public $fields = array();
+
+
 	/**
 	 *      Constructor
 	 *
diff --git a/htdocs/comm/action/list.php b/htdocs/comm/action/list.php
index 34dd94664e7..f0a7e1febf8 100644
--- a/htdocs/comm/action/list.php
+++ b/htdocs/comm/action/list.php
@@ -642,7 +642,6 @@ $s = $newtitle;
 
 // Calendars from hooks
 $parameters = array();
-$object = null;
 $reshook = $hookmanager->executeHooks('addCalendarChoice', $parameters, $object, $action);
 if (empty($reshook)) {
 	$s .= $hookmanager->resPrint;
@@ -687,7 +686,6 @@ $viewmode .= '<span class="marginrightonly"></span>';
 
 // Add more views from hooks
 $parameters = array();
-$object = null;
 $reshook = $hookmanager->executeHooks('addCalendarView', $parameters, $object, $action);
 if (empty($reshook)) {
 	$viewmode .= $hookmanager->resPrint;