diff --git a/extensions/pusher/js/admin/dist/extension.js b/extensions/pusher/js/admin/dist/extension.js
index e9b4393e3..30f6a86fb 100644
--- a/extensions/pusher/js/admin/dist/extension.js
+++ b/extensions/pusher/js/admin/dist/extension.js
@@ -55,6 +55,15 @@ System.register('flarum/pusher/components/PusherSettingsModal', ['flarum/compone
                 app.translator.trans('flarum-pusher.admin.pusher_settings.app_secret_label')
               ),
               m('input', { className: 'FormControl', bidi: this.setting('flarum-pusher.app_secret') })
+            ), m(
+              'div',
+              { className: 'Form-group' },
+              m(
+                'label',
+                null,
+                app.translator.trans('flarum-pusher.admin.pusher_settings.app_cluster_label')
+              ),
+              m('input', { className: 'FormControl', bidi: this.setting('flarum-pusher.app_cluster') })
             )];
           }
         }]);
diff --git a/extensions/pusher/js/admin/src/components/PusherSettingsModal.js b/extensions/pusher/js/admin/src/components/PusherSettingsModal.js
index 9dbf2421e..5d4a1a04d 100644
--- a/extensions/pusher/js/admin/src/components/PusherSettingsModal.js
+++ b/extensions/pusher/js/admin/src/components/PusherSettingsModal.js
@@ -24,6 +24,11 @@ export default class PusherSettingsModal extends SettingsModal {
       <div className="Form-group">
         <label>{app.translator.trans('flarum-pusher.admin.pusher_settings.app_secret_label')}</label>
         <input className="FormControl" bidi={this.setting('flarum-pusher.app_secret')}/>
+      </div>,
+
+      <div className="Form-group">
+        <label>{app.translator.trans('flarum-pusher.admin.pusher_settings.app_cluster_label')}</label>
+        <input className="FormControl" bidi={this.setting('flarum-pusher.app_cluster')}/>
       </div>
     ];
   }
diff --git a/extensions/pusher/js/forum/dist/extension.js b/extensions/pusher/js/forum/dist/extension.js
index d27870bcd..c47b6d2c8 100644
--- a/extensions/pusher/js/forum/dist/extension.js
+++ b/extensions/pusher/js/forum/dist/extension.js
@@ -26,6 +26,7 @@ System.register('flarum/pusher/main', ['flarum/extend', 'flarum/app', 'flarum/co
         $.getScript('//js.pusher.com/3.0/pusher.min.js', function () {
           var socket = new Pusher(app.forum.attribute('pusherKey'), {
             authEndpoint: app.forum.attribute('apiUrl') + '/pusher/auth',
+            cluster: app.forum.attribute('pusherCluster'),
             auth: {
               headers: {
                 'X-CSRF-Token': app.session.csrfToken
diff --git a/extensions/pusher/js/forum/src/main.js b/extensions/pusher/js/forum/src/main.js
index f6d9a92e4..837f14836 100644
--- a/extensions/pusher/js/forum/src/main.js
+++ b/extensions/pusher/js/forum/src/main.js
@@ -13,6 +13,7 @@ app.initializers.add('flarum-pusher', () => {
   $.getScript('//js.pusher.com/3.0/pusher.min.js', () => {
     const socket = new Pusher(app.forum.attribute('pusherKey'), {
       authEndpoint: app.forum.attribute('apiUrl') + '/pusher/auth',
+      cluster: app.forum.attribute('pusherCluster'),
       auth: {
         headers: {
           'X-CSRF-Token': app.session.csrfToken
diff --git a/extensions/pusher/src/Listener/AddPusherApi.php b/extensions/pusher/src/Listener/AddPusherApi.php
index 0106b0f94..9d9f93245 100755
--- a/extensions/pusher/src/Listener/AddPusherApi.php
+++ b/extensions/pusher/src/Listener/AddPusherApi.php
@@ -49,6 +49,7 @@ class AddPusherApi
     {
         if ($event->isSerializer(ForumSerializer::class)) {
             $event->attributes['pusherKey'] = $this->settings->get('flarum-pusher.app_key');
+            $event->attributes['pusherCluster'] = $this->settings->get('flarum-pusher.app_cluster', 'us');
         }
     }