diff --git a/specification/securityinsights/resource-manager/Microsoft.SecurityInsights/preview/2019-01-01-preview/SecurityInsights.json b/specification/securityinsights/resource-manager/Microsoft.SecurityInsights/preview/2019-01-01-preview/SecurityInsights.json
index 2ca1996f0005..855cbfe8aeda 100644
--- a/specification/securityinsights/resource-manager/Microsoft.SecurityInsights/preview/2019-01-01-preview/SecurityInsights.json
+++ b/specification/securityinsights/resource-manager/Microsoft.SecurityInsights/preview/2019-01-01-preview/SecurityInsights.json
@@ -10580,6 +10580,15 @@
         "contentType": {
           "description": "The content type of the raw content. Example : text/csv or text/tsv ",
           "type": "string"
+        },
+        "uploadStatus": {
+          "description": "The status of the Watchlist upload : New, InProgress or Complete. Pls note : When a Watchlist upload status is equal to InProgress, the Watchlist cannot be deleted",
+          "type": "string"
+        },
+        "watchlistItemsCount": {
+          "description": "The number of Watchlist Items in the Watchlist",
+          "type": "integer",
+          "format": "int32"
         }
       },
       "required": [