diff --git a/templates/registered/jabberbroadcast.html b/templates/registered/jabberbroadcast.html
index f6a01678..d3c07c83 100644
--- a/templates/registered/jabberbroadcast.html
+++ b/templates/registered/jabberbroadcast.html
@@ -21,7 +21,7 @@
                         {% csrf_token %}
                         {{ form|bootstrap }}
                         <br/>
-                        <button class="btn btn-lg btn-primary btn-block" type="submit">Broadcast</button>
+                        <button class="btn btn-lg btn-primary btn-block" type="submit" onclick="this.disabled=true">Broadcast</button>
                     </form>
                 </div>
             </div>