diff --git a/specification/eventgrid/resource-manager/Microsoft.EventGrid/2017-06-15-preview/EventGrid.json b/specification/eventgrid/resource-manager/Microsoft.EventGrid/2017-06-15-preview/EventGrid.json
index 71eaea5b2093..e665791877f1 100644
--- a/specification/eventgrid/resource-manager/Microsoft.EventGrid/2017-06-15-preview/EventGrid.json
+++ b/specification/eventgrid/resource-manager/Microsoft.EventGrid/2017-06-15-preview/EventGrid.json
@@ -147,6 +147,9 @@
                     }
                 ],
                 "responses": {
+                    "200": {
+                        "description": "OK"
+                    },
                     "202": {
                         "description": "Accepted"
                     },