diff --git a/lib/csys/csys.ex b/lib/csys/csys.ex
index d59c9b4..4ecbcce 100644
--- a/lib/csys/csys.ex
+++ b/lib/csys/csys.ex
@@ -19,8 +19,8 @@ defmodule Scopes.CSys do
   # helper functions
 
   defp process(msg, scope) do
-    Process.put(:scope, scope)
-    proc(scope).(msg)
+    #Process.put(:scope, scope)
+    proc(scope).(msg, scope)
   end
 
   def state(scope), do: elem(scope, 0)
diff --git a/lib/csys/program.ex b/lib/csys/program.ex
index 9d012ce..0f1d75c 100644
--- a/lib/csys/program.ex
+++ b/lib/csys/program.ex
@@ -9,7 +9,7 @@ defmodule Scopes.CSys.Program do
   # programs
 
   def basic_prog() do
-    %{default: &std_proc/1
+    %{default: &std_proc/2
       #initial: &std_proc/1,
       #active: &std_proc/1,
       #retired: &std_proc/1
@@ -18,8 +18,8 @@ defmodule Scopes.CSys.Program do
 
   # processors
 
-  def std_proc(msg) do
-    scope = Process.get(:scope)
+  def std_proc(msg, scope) do
+    #scope = Process.get(:scope)
     case msg do
       {:parent} ->
         new = create_parent(scope)