diff --git a/lib/contentstack.js b/lib/contentstack.js
index 85398c9f..9d377999 100644
--- a/lib/contentstack.js
+++ b/lib/contentstack.js
@@ -172,7 +172,7 @@ import { getContentstackEndpoint } from '@contentstack/utils'
  */
 export function client (params = {}) {
   let defaultHostName = params.region
-    ? getContentstackEndpoint(params.region.toUpperCase(), 'management', true)
+    ? getContentstackEndpoint(params.region.toUpperCase(), 'contentManagement', true)
     : getContentstackEndpoint('NA', 'contentManagement', true)
 
   if (params.host) {
diff --git a/test/sanity-check/api/user-test.js b/test/sanity-check/api/user-test.js
index 080b8f09..65806d84 100644
--- a/test/sanity-check/api/user-test.js
+++ b/test/sanity-check/api/user-test.js
@@ -136,11 +136,11 @@ describe('Contentstack User Session api Test', () => {
     // The new implementation uses getContentstackEndpoint which handles region validation
     // It should not throw an error, but will use whatever getContentstackEndpoint returns
     try {
-      const client = contentstack.client({ region: 'DUMMYREGION' })
-      expect(client).to.not.equal(null, 'Client should be created even with invalid region')
-      done()
+      contentstack.client({ region: 'DUMMYREGION' })
+      done(new Error('Expected an error to be thrown for invalid region'))
     } catch (error) {
-      done(error)
+      expect(error.message).to.include('Invalid region')
+      done()
     }
   })
 })