diff --git a/SoObjects/Appointments/SOGoCalendarComponent.m b/SoObjects/Appointments/SOGoCalendarComponent.m
index 8acacda79..d37438292 100644
--- a/SoObjects/Appointments/SOGoCalendarComponent.m
+++ b/SoObjects/Appointments/SOGoCalendarComponent.m
@@ -933,6 +933,9 @@
   /* get WOApplication instance */
   app = [WOApplication application];
 
+  /* remove all alarms to avoid bug #3925 */
+  [event removeAllAlarms];
+
   /* construct message content */
   p = [app pageWithName: @"SOGoAptMailICalReply"  inContext: context];
   [p setApt: (iCalEvent *) event];