diff --git a/sdk/extensions/Microsoft.Extensions.Azure/src/Internal/ClientFactory.cs b/sdk/extensions/Microsoft.Extensions.Azure/src/Internal/ClientFactory.cs
index c0030882c893..b5b1221542a1 100644
--- a/sdk/extensions/Microsoft.Extensions.Azure/src/Internal/ClientFactory.cs
+++ b/sdk/extensions/Microsoft.Extensions.Azure/src/Internal/ClientFactory.cs
@@ -228,7 +228,7 @@ internal static TokenCredential CreateCredential(IConfiguration configuration)
 
             if (!string.IsNullOrWhiteSpace(objectId))
             {
-                throw new ArgumentException("Managed identity 'objectId' is only supported when the credential type is 'managedidentity'.");
+                throw new ArgumentException("'managedIdentityObjectId' is only supported when the credential type is 'managedidentity'.");
             }
 
             if (additionallyAllowedTenantsList != null