diff --git a/ChangeLog b/ChangeLog
index 0725d6235..181e7222d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2011-11-02  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* OpenChange/MAPIStoreMessage.m (-setReadFlag:): make overrides
+	optional.
+
 	* OpenChange/MAPIStoreCalendarMessage.m (-save): handle all day
 	events based on the value of PidLidAppointmentSubType.
 	Don't add the timezone component to the vCalendar in that case.
diff --git a/OpenChange/MAPIStoreMessage.m b/OpenChange/MAPIStoreMessage.m
index d3a2f3bd4..eb7b467fe 100644
--- a/OpenChange/MAPIStoreMessage.m
+++ b/OpenChange/MAPIStoreMessage.m
@@ -744,7 +744,7 @@ MAPIStoreExternalEntryId (NSString *cn, NSString *email)
 
 - (int) setReadFlag: (uint8_t) flag
 {
-  [self subclassResponsibility: _cmd];
+  // [self subclassResponsibility: _cmd];
 
   return MAPISTORE_ERROR;
 }