diff --git a/htdocs/bookcal/calendar_agenda.php b/htdocs/bookcal/calendar_agenda.php
index 391c65e81ed..7ef31ec2c3e 100644
--- a/htdocs/bookcal/calendar_agenda.php
+++ b/htdocs/bookcal/calendar_agenda.php
@@ -113,7 +113,7 @@ if (!$permissiontoread) {
  *  Actions
  */
 
-$parameters = array('id'=>$id);
+$parameters = array('id' => $id);
 $reshook = $hookmanager->executeHooks('doActions', $parameters, $object, $action); // Note that $action and $object may have been modified by some hooks
 if ($reshook < 0) {
 	setEventMessages($hookmanager->error, $hookmanager->errors, 'errors');
@@ -217,14 +217,14 @@ if ($object->id > 0) {
 	$objthirdparty = $object;
 	$objcon = new stdClass();
 
-	$out = '&origin='.urlencode($object->element.(property_exists($object, 'module') ? '@'.$object->module : '')).'&originid='.urlencode($object->id);
+	$out = '&origin='.urlencode((string) ($object->element.(property_exists($object, 'module') ? '@'.$object->module : ''))).'&originid='.urlencode((string) ($object->id));
 	$urlbacktopage = $_SERVER['PHP_SELF'].'?id='.$object->id;
 	$out .= '&backtopage='.urlencode($urlbacktopage);
 	$permok = $user->hasRight('agenda', 'myactions', 'create');
 	if ((!empty($objthirdparty->id) || !empty($objcon->id)) && $permok) {
 		//$out.='<a href="'.DOL_URL_ROOT.'/comm/action/card.php?action=create';
 		if (get_class($objthirdparty) == 'Societe') {
-			$out .= '&socid='.urlencode($objthirdparty->id);
+			$out .= '&socid='.urlencode((string) ($objthirdparty->id));
 		}
 		$out .= (!empty($objcon->id) ? '&contactid='.urlencode($objcon->id) : '');
 		//$out.=$langs->trans("AddAnAction").' ';