diff --git a/ChangeLog b/ChangeLog
index 97f33dfba..e398df6a0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2009-07-14  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* SoObjects/Appointments/SOGoUserFolder+Appointments.m
+	(-davCalendarUserAddressSet): we return the "MAILTO:" prefix in
+	lower case instead.
+
 	* SoObjects/Appointments/SOGoAppointmentFolders.m
 	(-davCalendarComponentSet): new method, copied from
 	SOGoAppointmentFolder.
diff --git a/SoObjects/Appointments/SOGoUserFolder+Appointments.m b/SoObjects/Appointments/SOGoUserFolder+Appointments.m
index 211c72460..46a5b5eaf 100644
--- a/SoObjects/Appointments/SOGoUserFolder+Appointments.m
+++ b/SoObjects/Appointments/SOGoUserFolder+Appointments.m
@@ -60,7 +60,7 @@
   while ((currentEmail = [emails nextObject]))
     {
       tag = [NSArray arrayWithObjects: @"href", @"DAV:", @"D",
-		     [NSString stringWithFormat: @"MAILTO:%@", currentEmail],
+		     [NSString stringWithFormat: @"mailto:%@", currentEmail],
 		     nil];
       [addresses addObject: tag];
     }