diff --git a/src/management.ml b/src/management.ml
index 5e37c9b8..30562e7d 100644
--- a/src/management.ml
+++ b/src/management.ml
@@ -110,20 +110,20 @@ let keys_get req server _env =
   let* () = add ~field:"content-type" "application/json" in
   respond `OK
 
-type foo = { key: string }
+type foo = { v: string }
 
 let foo_jsont =
   let open Jsont in
-  let enc foo = foo.key in
-  let make key = { key } in
-  Object.map ~kind:"foo" make |> Object.mem "key" string ~enc |> Object.finish
+  let enc foo = foo.v in
+  let make v = { v } in
+  Object.map ~kind:"foo" make |> Object.mem "v" string ~enc |> Object.finish
 
 let keys_post req _server _env =
   let open Vif.Response in
   let open Syntax in
   match Vif.Request.of_json req with
   | Ok (foo : foo) ->
-      let str = Fmt.str "key: %s@." foo.key in
+      let str = Fmt.str "key: %s@." foo.v in
       let* () =
         Vif.Response.add ~field:"content-type" "text/plain; charset=utf-8"
       in