diff --git a/static/templates/subscription.handlebars b/static/templates/subscription.handlebars
index 8bb783d33b..d5cab1bd0f 100644
--- a/static/templates/subscription.handlebars
+++ b/static/templates/subscription.handlebars
@@ -101,7 +101,7 @@
         <span class="sub_settings_title">{{t "Stream membership" }}</span>
         <div class="subscriber_list_add">
           <form class="form-inline">
-            <input type="text" name="principal" placeholder="{{t 'Email address' }}" value="" class="input-block" tabindex="-1" />
+            <input type="text" name="principal" placeholder="{{t 'Email address' }}" value="" class="input-block" autocomplete="off" tabindex="-1" />
             <input type="submit" name="add_subscriber" value="{{t 'Add' }}" class="btn btn-primary add-subscriber-button" tabindex="-1 "/>
           </form>
         </div>