diff --git a/misc/BreCalApi.yaml b/misc/BreCalApi.yaml
index 4f730c5..c9d9da0 100644
--- a/misc/BreCalApi.yaml
+++ b/misc/BreCalApi.yaml
@@ -1,8 +1,8 @@
 openapi: 3.0.0
 x-stoplight:
-  id: iucm9tq7jgu7j
+  id: mwv4y8vcnopwr
 info:
-  version: 1.1.0
+  version: 1.2.0
   title: Bremen calling API
   description: 'Administer DEBRE ship calls, times and notifications'
   termsOfService: 'https://www.bsmd.de/'
@@ -407,6 +407,7 @@ components:
         participant_id:
           type: integer
         type:
+          description: 'Currently this is encoded as an integer, since in OpenAPI 3.0 there are no enumerations supported with discrete integer values like a bitwise flag array used here. Each bit corresponds to a role. Since a participant can have multiple roles, these bits are combined by OR. Individual values: 1: BSMD 2: TERMINAL, 4: PILOT, 8: AGENCY, 16: MOORING, 32: PORT_ADMINISTRATION, 64: TUG'
           type: integer
     shipcall:
       type: object