diff --git a/specification/notebooks/resource-manager/Microsoft.Notebooks/preview/2019-10-11-preview/notebooks.json b/specification/notebooks/resource-manager/Microsoft.Notebooks/preview/2019-10-11-preview/notebooks.json
index 6fa544b75490..c37ed1633435 100644
--- a/specification/notebooks/resource-manager/Microsoft.Notebooks/preview/2019-10-11-preview/notebooks.json
+++ b/specification/notebooks/resource-manager/Microsoft.Notebooks/preview/2019-10-11-preview/notebooks.json
@@ -9,6 +9,12 @@
   "schemes": [
     "https"
   ],
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
   "security": [
     {
       "azure_auth": [