diff --git a/specification/cognitiveservices/resource-manager/Microsoft.CognitiveServices/stable/2017-04-18/cognitiveservices.json b/specification/cognitiveservices/resource-manager/Microsoft.CognitiveServices/stable/2017-04-18/cognitiveservices.json
index 22fe04767512..3df7d2a171a8 100644
--- a/specification/cognitiveservices/resource-manager/Microsoft.CognitiveServices/stable/2017-04-18/cognitiveservices.json
+++ b/specification/cognitiveservices/resource-manager/Microsoft.CognitiveServices/stable/2017-04-18/cognitiveservices.json
@@ -728,6 +728,10 @@
             "type": "string"
           },
           "description": "Gets or sets a list of key value pairs that describe the resource. These tags can be used in viewing and grouping this resource (across resource groups). A maximum of 15 tags can be provided for a resource. Each tag must have a key no greater than 128 characters and value no greater than 256 characters."
+        },
+        "properties": {
+          "type": "object",
+          "description": "Additional properties for Account. Only provided fields will be updated."
         }
       },
       "description": "The parameters to provide for the account."
@@ -1328,4 +1332,4 @@
       "x-ms-parameter-location": "method"
     }
   }
-}
\ No newline at end of file
+}