diff --git a/docs/Cube.js-Backend/REST-API.md b/docs/Cube.js-Backend/REST-API.md
index f65e64f26ed99..7f7c420685c57 100644
--- a/docs/Cube.js-Backend/REST-API.md
+++ b/docs/Cube.js-Backend/REST-API.md
@@ -219,7 +219,7 @@ Example response:
           shortTitle:"Count",
           aliasName:"users.count",
           type:"number",
-          aggType:"count"
+          aggType:"count",
           drillMembers:[
             "Users.id",
             "Users.city",