diff --git a/api/index.go b/api/index.go
index c37689d..d2ebd6a 100644
--- a/api/index.go
+++ b/api/index.go
@@ -76,6 +76,6 @@ func handleEventCallback(r *http.Request, body []byte) {
 	client := &http.Client{
 		Timeout: 500 * time.Millisecond,
 	}
-	log.Printf("Delegate event callback to /event")
+	log.Printf("Delegate event callback to %s", fmt.Sprintf("%s://%s/event", scheme, r.Host))
 	client.Do(req)
 }