diff --git a/specification/dnc/resource-manager/Microsoft.DelegatedNetwork/preview/2023-05-18-preview/controller.json b/specification/dnc/resource-manager/Microsoft.DelegatedNetwork/preview/2023-05-18-preview/controller.json
index a0ef4f0df639..f29825584c14 100644
--- a/specification/dnc/resource-manager/Microsoft.DelegatedNetwork/preview/2023-05-18-preview/controller.json
+++ b/specification/dnc/resource-manager/Microsoft.DelegatedNetwork/preview/2023-05-18-preview/controller.json
@@ -385,7 +385,6 @@
       ],
       "properties": {
         "properties": {
-          "readOnly": true,
           "$ref": "#/definitions/DelegatedControllerProperties",
           "description": "Properties of the provision operation request."
         }