diff --git a/packages/node_modules/@webex/webex-core/src/lib/services/services.js b/packages/node_modules/@webex/webex-core/src/lib/services/services.js
index <HASH>..<HASH> 100644
--- a/packages/node_modules/@webex/webex-core/src/lib/services/services.js
+++ b/packages/node_modules/@webex/webex-core/src/lib/services/services.js
@@ -8,6 +8,7 @@ import ServiceCatalog from './service-catalog';
 import ServiceRegistry from './service-registry';
 import ServiceState from './service-state';
 
+
 const trailingSlashes = /(?:^\/)|(?:\/$)/;
 
 /* eslint-disable no-underscore-dangle */
@@ -188,7 +189,7 @@ const Services = WebexPlugin.extend({
 
       formattedQuery = {};
 
-      if (queryKey === 'email') {
+      if (queryKey === 'email' && query.email) {
         formattedQuery.emailhash = sha256(query.email.toLowerCase()).toString();
       }
       else {
fix(authorization): add additional email query check