diff --git a/src/calendar-server/gnome-shell-calendar-server.c b/src/calendar-server/gnome-shell-calendar-server.c
index 5ff12f23e..57bc71bb8 100644
--- a/src/calendar-server/gnome-shell-calendar-server.c
+++ b/src/calendar-server/gnome-shell-calendar-server.c
@@ -443,6 +443,8 @@ generate_instances_cb (ECalComponent *comp,
   occurrence->rid        = e_cal_component_get_recurid_as_string (comp);
 
   appointment->occurrences = g_slist_append (appointment->occurrences, occurrence);
+
+  return TRUE;
 }