diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/examples/getWorkspace.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/examples/getWorkspace.json
index 6cb4b63cac77..c0efa8ee9212 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/examples/getWorkspace.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/examples/getWorkspace.json
@@ -33,7 +33,8 @@
               "identityClientId": ""
             }
           },
-          "hbiWorkspace": false
+          "hbiWorkspace": false,
+          "serviceProvisionedResourceGroup": "testworkspace_0000111122223333"
         }
       }
     }
diff --git a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/machineLearningServices.json b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/machineLearningServices.json
index b4ab6015b709..82a359496bb3 100644
--- a/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/machineLearningServices.json
+++ b/specification/machinelearningservices/resource-manager/Microsoft.MachineLearningServices/stable/2020-01-01/machineLearningServices.json
@@ -1461,6 +1461,11 @@
           "type": "boolean",
           "description": "The flag to signal HBI data in the workspace and reduce diagnostic data collected by the service",
           "default": false
+        },
+        "serviceProvisionedResourceGroup": {
+          "type": "string",
+          "description": "The name of the managed resource group created by workspace RP in customer subscription if the workspace is CMK workspace",
+          "readOnly": true
         }
       }
     },