diff --git a/4.1.-op-request=booking_request.md b/4.1.-op-request=booking_request.md
index 4381b90..b85e1d6 100644
--- a/4.1.-op-request=booking_request.md
+++ b/4.1.-op-request=booking_request.md
@@ -5,12 +5,12 @@
 | key  | Required    | Format   | Comment                      |
 | ---------- | ----------- | -------- | ---------------------------- |
 | authcookie | +           | text | unique encrypted key         |
-| bike       | +           | int  | bike prefix+number for booking      |
+| bike       | +           | text  | bike prefix+number for booking      |
 
 **response** like **request=user_bikes_occupied** with "bikes_occupied" JSON-Objects
 
 Example
-**REST request=booking_request** request from authorized users 
+**REST request=booking_request** from authorized users 
 ```
 https://shareeapp-fr01.copri-bike.de/APIjsonserver?request=booking_request&bike=FR1540&authcookie=6103_7dc3c95028d06c9663378f6d44346de7_12345678
 ```