diff --git a/schemas/2019-01-01-preview/Microsoft.SecurityInsights.json b/schemas/2019-01-01-preview/Microsoft.SecurityInsights.json
index 9057cf246b..779621c7d9 100644
--- a/schemas/2019-01-01-preview/Microsoft.SecurityInsights.json
+++ b/schemas/2019-01-01-preview/Microsoft.SecurityInsights.json
@@ -462,6 +462,10 @@
             "2019-01-01-preview"
           ]
         },
+        "etag": {
+          "type": "string",
+          "description": "Etag of the azure resource"
+        },
         "name": {
           "type": "string",
           "description": "Incident comment ID"
@@ -1805,6 +1809,10 @@
             "2019-01-01-preview"
           ]
         },
+        "etag": {
+          "type": "string",
+          "description": "Etag of the azure resource"
+        },
         "name": {
           "type": "string",
           "description": "Incident comment ID"