diff --git a/internal-latency.rkt b/internal-latency.rkt
index ed8ee3c..09d0b60 100644
--- a/internal-latency.rkt
+++ b/internal-latency.rkt
@@ -5,6 +5,8 @@
 (require minimart)
 (require logbook)
 
+(provide run)
+
 (struct ping (src dst timestamp) #:transparent)
 
 (define (send-ping src dst)