diff --git a/Tools/SOGoEAlarmsNotifier.m b/Tools/SOGoEAlarmsNotifier.m
index 2a2a49dcf..e1067ed57 100644
--- a/Tools/SOGoEAlarmsNotifier.m
+++ b/Tools/SOGoEAlarmsNotifier.m
@@ -46,6 +46,7 @@
 #import <Appointments/iCalPerson+SOGo.h>
 #import <Appointments/SOGoEMailAlarmsManager.h>
 #import <Appointments/SOGoAppointmentFolder.h>
+#import <Appointments/SOGoAppointmentFolders.h>
 
 #import <NGObjWeb/WOApplication.h>
 #import <NGObjWeb/WOContext+SoObjects.h>