Index: calendar/libecal/e-cal.c
===================================================================
--- calendar/libecal/e-cal.c	(revision 8397)
+++ calendar/libecal/e-cal.c	(working copy)
@@ -3470,8 +3469,11 @@ process_detached_instances (GList *insta
 					}
 				}
 			}
+			e_cal_component_free_datetime (&instance_recur_id.datetime);
 		}
 
+		e_cal_component_free_datetime (&recur_id.datetime);
+
 		if (!processed)
 			unprocessed_instances = g_list_prepend (unprocessed_instances, cid);
 	}
