diff --git a/group-scheduling.rkt b/group-scheduling.rkt
index a8ad498..97a3b56 100644
--- a/group-scheduling.rkt
+++ b/group-scheduling.rkt
@@ -1,5 +1,7 @@
 #lang racket
 
+(module group-scheduling racket
+  
 (provide (all-defined-out))
 
 (require racklog
@@ -372,4 +374,4 @@
             group)
   (printf "~n"))
 
-
+)