diff --git a/ChangeLog b/ChangeLog
index 65907e7c1..9a921fde6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2012-01-09  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
+
+	* OpenChange/MAPIStoreCalendarFolder.m (-exchangeRightsForRoles):
+	add the freebusy read rights when the user has read permission on
+	calendar objects.
+
 2012-01-05  Francis Lachapelle  <flachapelle@inverse.ca>
 
 	* SoObjects/SOGo/SOGoUserManager.m (-_registerSource:inDomain::):
diff --git a/OpenChange/MAPIStoreCalendarFolder.m b/OpenChange/MAPIStoreCalendarFolder.m
index 747bfbef5..b7cdd5466 100644
--- a/OpenChange/MAPIStoreCalendarFolder.m
+++ b/OpenChange/MAPIStoreCalendarFolder.m
@@ -153,7 +153,7 @@
   else if ([roles containsObject: SOGoCalendarRole_PublicViewer]
            && [roles containsObject: SOGoCalendarRole_PrivateViewer]
            && [roles containsObject: SOGoCalendarRole_ConfidentialViewer])
-    rights |= RightsReadItems;
+    rights |= RightsReadItems | 0x1800;
   if (rights != 0)
     rights |= RoleNone; /* actually "folder visible" */