diff --git a/UI/Templates/SchedulerUI/UIxAppointmentEditorTemplate.wox b/UI/Templates/SchedulerUI/UIxAppointmentEditorTemplate.wox
index c687d7ba8..97325c692 100644
--- a/UI/Templates/SchedulerUI/UIxAppointmentEditorTemplate.wox
+++ b/UI/Templates/SchedulerUI/UIxAppointmentEditorTemplate.wox
@@ -141,7 +141,7 @@
         <div class="md-flex">
           <md-input-container>
             <label><var:string label:value="Repeat"/></label>
-            <md-select ng-model="editor.component.repeat.frequency">
+            <md-select ng-model="editor.component.repeat.frequency" ng-disabled="editor.component.occurrenceId">
               <var:foreach list="repeatList" item="item">
                 <md-option var:value="item"><var:string var:value="itemRepeatText"/></md-option>
               </var:foreach>