diff --git a/__tests__/LoginConfig.test.ts b/__tests__/LoginConfig.test.ts
index a4933903a..ee5d67b2c 100644
--- a/__tests__/LoginConfig.test.ts
+++ b/__tests__/LoginConfig.test.ts
@@ -245,7 +245,7 @@ describe("LoginConfig Test", () => {
 
         let loginConfig = new LoginConfig();
         await loginConfig.initialize();
-        testValidateWithErrorMessage(loginConfig, "Ensure subscriptionId is supplied.");
+        testValidateWithErrorMessage(loginConfig, "Ensure 'subscription-id' is supplied or 'allow-no-subscriptions' is 'true'.");
     });
 
     test('validate without subscriptionId and allowNoSubscriptionsLogin=true', async () => {
diff --git a/src/common/LoginConfig.ts b/src/common/LoginConfig.ts
index d3a3e1c74..0f69f0f89 100644
--- a/src/common/LoginConfig.ts
+++ b/src/common/LoginConfig.ts
@@ -99,7 +99,7 @@ export class LoginConfig {
             }
         }
         if (!this.subscriptionId && !this.allowNoSubscriptionsLogin) {
-            throw new Error("Ensure subscriptionId is supplied.");
+            throw new Error("Ensure 'subscription-id' is supplied or 'allow-no-subscriptions' is 'true'.");
         }
     }