diff --git a/dist/bundle.es.js b/dist/bundle.es.js
index 688b660..5274999 100644
--- a/dist/bundle.es.js
+++ b/dist/bundle.es.js
@@ -320,7 +320,7 @@ Lbryio.getAuthToken = () => new Promise(resolve => {
 
 Lbryio.getCurrentUser = () => Lbryio.call('user', 'me');
 
-Lbryio.authenticate = () => {
+Lbryio.authenticate = domain => {
   if (!Lbryio.enabled) {
     return new Promise(resolve => {
       resolve({
@@ -355,10 +355,11 @@ Lbryio.authenticate = () => {
         }
 
         return lbryRedux.Lbry.status().then(status => new Promise((res, rej) => {
+          const appId = domain && domain !== 'lbry.tv' ? (domain.replace(/[.]/gi, '') + status.installation_id).slice(0, 66) : status.installation_id;
           Lbryio.call('user', 'new', {
             auth_token: '',
             language: 'en',
-            app_id: status.installation_id
+            app_id: appId
           }, 'post').then(response => {
             if (!response.auth_token) {
               throw new Error('auth_token was not set in the response');
diff --git a/dist/bundle.js b/dist/bundle.js
index 52b42bc..14e1a7b 100644
--- a/dist/bundle.js
+++ b/dist/bundle.js
@@ -628,7 +628,7 @@ Lbryio.getCurrentUser = function () {
   return Lbryio.call('user', 'me');
 };
 
-Lbryio.authenticate = function () {
+Lbryio.authenticate = function (domain) {
   if (!Lbryio.enabled) {
     return new Promise(function (resolve) {
       resolve({
@@ -666,10 +666,11 @@ Lbryio.authenticate = function () {
 
         return lbry_redux__WEBPACK_IMPORTED_MODULE_1__["Lbry"].status().then(function (status) {
           return new Promise(function (res, rej) {
+            var appId = domain && domain !== 'lbry.tv' ? (domain.replace(/[.]/gi, '') + status.installation_id).slice(0, 66) : status.installation_id;
             Lbryio.call('user', 'new', {
               auth_token: '',
               language: 'en',
-              app_id: status.installation_id
+              app_id: appId
             }, 'post').then(function (response) {
               if (!response.auth_token) {
                 throw new Error('auth_token was not set in the response');
diff --git a/src/lbryio.js b/src/lbryio.js
index 0b3d2e0..7620095 100644
--- a/src/lbryio.js
+++ b/src/lbryio.js
@@ -111,7 +111,7 @@ Lbryio.getAuthToken = () =>
 
 Lbryio.getCurrentUser = () => Lbryio.call('user', 'me');
 
-Lbryio.authenticate = () => {
+Lbryio.authenticate = domain => {
   if (!Lbryio.enabled) {
     return new Promise(resolve => {
       resolve({
@@ -153,13 +153,17 @@ Lbryio.authenticate = () => {
             .then(
               status =>
                 new Promise((res, rej) => {
+                  const appId =
+                    domain && domain !== 'lbry.tv'
+                      ? (domain.replace(/[.]/gi, '') + status.installation_id).slice(0, 66)
+                      : status.installation_id;
                   Lbryio.call(
                     'user',
                     'new',
                     {
                       auth_token: '',
                       language: 'en',
-                      app_id: status.installation_id,
+                      app_id: appId,
                     },
                     'post'
                   )