diff --git a/Fsdk/Process.fs b/Fsdk/Process.fs
index 2f07074..be1e5ca 100644
--- a/Fsdk/Process.fs
+++ b/Fsdk/Process.fs
@@ -16,14 +16,14 @@ module Process =
         let ticketToRide = ref 1
 
         member __.Enter() =
-            let myTicket = Interlocked.Increment ticketsCount
+            let myTicket = Interlocked.Increment &ticketsCount
             Monitor.Enter innerLock
 
-            while myTicket <> ticketToRide.Value do
+            while myTicket <> &ticketToRide.Value do
                 Monitor.Wait innerLock |> ignore
 
         member __.Exit() =
-            Interlocked.Increment ticketToRide |> ignore
+            Interlocked.Increment &ticketToRide |> ignore
             Monitor.PulseAll innerLock
             Monitor.Exit innerLock