diff --git a/swagger.json b/swagger.json
index 632731e..8d13442 100644
--- a/swagger.json
+++ b/swagger.json
@@ -1784,6 +1784,13 @@
           },
           {
             "$ref": "#/parameters/groupIdQueryParam"
+          },
+          {
+            "type": "integer",
+            "format": "int64",
+            "description": "Timestamp in Unix epoch miliseconds representing the end of the period to fetch. Omitting endMs sets endMs as the current time",
+            "name": "endMs",
+            "in": "query"
           }
         ],
         "responses": {