diff --git a/ChangeLog b/ChangeLog
index fadb5dcaf..0e9e36a0f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2011-06-03  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* OpenChange/MAPIStoreCalendarMessageTable.m
+	(-sortIdentifierForProperty:): c_isallday and c_creationdate as
+	mappings for PidLidAppointmentSubType and PR_CREATION_TIME.
+
 	* OpenChange/MAPIStoreContext.m: MAPIStoreMapping instances are
 	now per-user instances rather than class singletons.
 
diff --git a/OpenChange/MAPIStoreCalendarMessageTable.m b/OpenChange/MAPIStoreCalendarMessageTable.m
index 1911ac9e1..1703f74fa 100644
--- a/OpenChange/MAPIStoreCalendarMessageTable.m
+++ b/OpenChange/MAPIStoreCalendarMessageTable.m
@@ -95,6 +95,10 @@
                           forKey: MAPIPropertyKey (PidLidAppointmentEndWhole)];
       [knownProperties setObject: @"c_iscycle"
                           forKey: MAPIPropertyKey (PidLidRecurring)];
+      [knownProperties setObject: @"c_isallday"
+                          forKey: MAPIPropertyKey (PidLidAppointmentSubType)];
+      [knownProperties setObject: @"c_creationdate"
+                          forKey: MAPIPropertyKey (PR_CREATION_TIME)];
     }
 
   return [knownProperties objectForKey: MAPIPropertyKey (property)];