diff --git a/imperative/test/distributed/nesting-confusion.rkt b/imperative/test/distributed/nesting-confusion.rkt
index c54afae..98f8f3d 100644
--- a/imperative/test/distributed/nesting-confusion.rkt
+++ b/imperative/test/distributed/nesting-confusion.rkt
@@ -3,6 +3,7 @@
 
 (require (only-in imperative-syndicate/lang activate))
 (require imperative-syndicate/distributed)
+(require imperative-syndicate/distributed/internal-protocol)
 
 (assertion-struct researcher (name topic))