diff --git a/FsBase/Extensions.fs b/FsBase/Extensions.fs
index b0a97f3..5d66624 100644
--- a/FsBase/Extensions.fs
+++ b/FsBase/Extensions.fs
@@ -1,16 +1,11 @@
 namespace FruityFoundation.FsBase
-
-open System.Runtime.CompilerServices
 open FruityFoundation.Base.Structures
 
-[<Extension>]
-type Extensions () =
-    [<Extension>]
-    static member ToMaybe (opt : 'a option) =
-        match opt with
+module Option =
+    let toMaybe : 'a option -> Maybe<'a> = function
         | Some x -> x |> Maybe.Create
         | None -> Maybe.Empty ()
 
-    [<Extension>]
-    static member ToFSharpOption (opt : 'a Maybe) =
-        if opt.HasValue then Some opt.Value else None
\ No newline at end of file
+    let fromMaybe : Maybe<'a> -> 'a option = function
+        | x when x.HasValue -> Some x.Value
+        | _ -> None