diff --git a/arvo/dill.hoon b/arvo/dill.hoon
index cd7c1031f..0b9ef3778 100644
--- a/arvo/dill.hoon
+++ b/arvo/dill.hoon
@@ -523,6 +523,8 @@
             bus  (add let bus.u.q.q.yar)
             bul  (add let bul.u.q.q.yar)
             but
+          ~>  %slog.[%bus bus.u.q.q.yar] 
+          ~>  %slog.[%but but.u.q.q.yar] 
           ;:  weld
             (scag bus.u.q.q.yar but.u.q.q.yar)
             p.p.kyz