diff --git a/src/gcal-event.c b/src/gcal-event.c
index 5c76cfe1..eb245079 100644
--- a/src/gcal-event.c
+++ b/src/gcal-event.c
@@ -194,6 +194,7 @@ gcal_event_update_uid_internal (GcalEvent *self)
                                    id->uid);
     }
 
+  e_cal_component_free_id (id);
   g_object_notify (G_OBJECT (self), "uid");
 }