diff --git a/kronolith/lib/Event.php b/kronolith/lib/Event.php
index 7ef4d20dfb8..47f2f5b08a7 100644
--- a/kronolith/lib/Event.php
+++ b/kronolith/lib/Event.php
@@ -1706,19 +1706,18 @@ public function toASAppointment(array $options = array())
                         $e->setDTStamp($_SERVER['REQUEST_TIME']);
 
                         switch ($exception->status) {
-                        case Kronolith::STATUS_CANCELLED:
-                            $status = 'declined';
+                        case Kronolith::STATUS_TENTATIVE;
+                            $e->responsetype = Horde_ActiveSync_Message_Appointment::RESPONSE_TENTATIVE;
+                            break;
+                        case Kronolith::STATUS_NONE:
+                            $e->responsetype = Horde_ActiveSync_Message_Appointment::RESPONSE_NORESPONSE;
                             break;
                         case Kronolith::STATUS_CONFIRMED:
-                            $status = 'accepted';
+                            $e->responsetype = Horde_ActiveSync_Message_Appointment::RESPONSE_ACCEPTED;
                             break;
-                        case Kronolith::STATUS_TENTATIVE:
-                            $status = 'tentative';
-                        case Kronolith::STATUS_FREE:
-                        case Kronolith::STATUS_NONE:
-                            $status = 'none';
+                        default:
+                            $e->responsetype = Horde_ActiveSync_Message_Appointment::RESPONSE_NONE;
                         }
-                        $e->setResponseType($status);
 
                         // Tags/Categories
                         if (!$exception->isPrivate()) {