diff --git a/entity/Appointment_entity/recordcontainers/jdito/onUpdate.js b/entity/Appointment_entity/recordcontainers/jdito/onUpdate.js
index d9c947a770aed397a837cdea2483289f3d0ef2de..32ea225c34405b2ce25a50d2199e8c1800ae20c6 100644
--- a/entity/Appointment_entity/recordcontainers/jdito/onUpdate.js
+++ b/entity/Appointment_entity/recordcontainers/jdito/onUpdate.js
@@ -56,7 +56,7 @@ if(event)
             event[calendars.REMINDER_DURATION] = fields["REMINDER.value"];
         }
         
-        if(event[calendars.RRULE])
+        if(fields["RRULE.value"])
             event[calendars.RRULE] = [fields["RRULE.value"]];
         
         // Adds the required X-Header for status actions needed by Exchange and Domino