diff --git a/gall-app/urbit/app/browsermanager.hoon b/gall-app/urbit/app/browsermanager.hoon
index c148253..c8a334f 100644
--- a/gall-app/urbit/app/browsermanager.hoon
+++ b/gall-app/urbit/app/browsermanager.hoon
@@ -70,7 +70,10 @@
   ~&  'on-load'
   on-load:def
 ++  on-leave  on-leave:def
-++  on-peek   on-peek:def
+++  on-peek
+  |=  pax=path
+  ^-  (unit (unit cage))
+  ~
 ++  on-fail   on-fail:def
 --
 :: Helper core