diff --git a/lib/react-azure-adb2c.js b/lib/react-azure-adb2c.js
index 97cc7bb..bb53976 100644
--- a/lib/react-azure-adb2c.js
+++ b/lib/react-azure-adb2c.js
@@ -42,7 +42,8 @@ var appConfig = {
   applicationId: null,
   cacheLocation: null,
   redirectUri: null,
-  postLogoutRedirectUri: null
+  postLogoutRedirectUri: null,
+  validateAuthority: null
 };
 
 function loggerCallback(logLevel, message, piiLoggingEnabled) {
@@ -103,7 +104,9 @@ var authentication = {
     new Msal.UserAgentApplication(config.applicationId, authority, authCallback, { logger: logger,
       cacheLocation: config.cacheLocation,
       postLogoutRedirectUri: config.postLogoutRedirectUri,
-      redirectUri: config.redirectUri });
+      redirectUri: config.redirectUri,
+      validateAuthority: config.validateAuthority });
+								
   },
   run: function run(launchApp) {
     state.launchApp = launchApp;