diff --git a/racket/syndicate/examples/actor/mutex.rkt b/racket/syndicate/examples/actor/mutex.rkt
index 5a9e569..a97d584 100644
--- a/racket/syndicate/examples/actor/mutex.rkt
+++ b/racket/syndicate/examples/actor/mutex.rkt
@@ -4,8 +4,6 @@
 (require racket/set)
 (require syndicate/functional-queue)
 
-(require/activate syndicate/drivers/timer)
-
 (struct lease-request (resource-id request-id) #:prefab)
 (struct lease-assignment (resource-id request-id) #:prefab)
 (struct resource-status (resource-id waiter-count) #:prefab)
@@ -45,6 +43,8 @@
 
 ;;---------------------------------------------------------------------------
 
+(require/activate syndicate/drivers/timer)
+
 (struct philosopher-status (name status) #:prefab)
 
 (actor (react (define/query-hash-set thinkers (philosopher-status $who $status) status who)