diff --git a/fsharp/todolist-api/src/App.fs b/fsharp/todolist-api/src/App.fs
index a4eede5..bb6b5f4 100644
--- a/fsharp/todolist-api/src/App.fs
+++ b/fsharp/todolist-api/src/App.fs
@@ -25,7 +25,7 @@ module App =
     open Utils
     open Db
 
-    let todoById (id) = 
+    let todoById (id): WebPart = 
         let todo = 
             Context.getContext() 
             |> Queries.getTodosById id 
@@ -35,7 +35,7 @@ module App =
         | Some inner -> inner |> jsonToString |>  OK
         | None -> id |> sprintf "Cannot find todo with id %i" |> NOT_FOUND 
 
-    let updateTodo (id) =
+    let updateTodo (id): WebPart =
         let dbContext = Context.getContext()
         let todo = dbContext |> Queries.getTodosById id
 
@@ -59,6 +59,7 @@ module App =
         | None -> id |> sprintf "Cannot find todo with id %i" |> NOT_FOUND 
 
 
+
     let mainWebPart: WebPart = choose [
         GET >=> pathScan "/todos/%i" todoById
         PUT >=> pathScan "/todos/%i" updateTodo]