diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2022-10-01-preview/machineLearningServices.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2022-10-01-preview/machineLearningServices.json
index 05c3dc68c749..c8b8156e476b 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2022-10-01-preview/machineLearningServices.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/preview/2022-10-01-preview/machineLearningServices.json
@@ -3392,7 +3392,8 @@
         },
         "disableLocalAuth": {
           "type": "boolean",
-          "description": "Opt-out of local authentication and ensure customers can use only MSI and AAD exclusively for authentication."
+          "description": "Opt-out of local authentication and ensure customers can use only MSI and AAD exclusively for authentication.",
+          "readOnly": true
         }
       },
       "required": [