diff --git a/5.2.-tool-request=bikes_all.md b/5.2.-tool-request=bikes_all.md
index caca645..9ccffa8 100644
--- a/5.2.-tool-request=bikes_all.md
+++ b/5.2.-tool-request=bikes_all.md
@@ -40,7 +40,7 @@
 **smartlock_type** JSON Object 
 | key          | Required | Format           | Comment                        |
 | ------------------ | -------- | ---------------- | -------------------------- |
-| system       | o          | text                 | ex. "Ilockit"  |
+| engine  | o | object |  contains engine attributes like "manufacturer" |
 | battery | o | object | contains smartlock battery attributes. Look at example response |
 
 
@@ -60,7 +60,9 @@ https://shareeapp-primary.example.tld/APIjsonserver?request=bikes_all&authcookie
         "FR4781" : {
             "bike" : "FR4781",
             "smartlock_type" : {
-               "system" : "Ilockit",
+               "engine" : {
+                  "manufacturer" : "Ilockit"
+               },
                "battery" : {
                   "charge_current_percent" : "37"
                }