diff --git a/pkg/arvo/app/demo/pull-hook.hoon b/pkg/arvo/app/demo/pull-hook.hoon
deleted file mode 100644
index e69de29bb..000000000
diff --git a/pkg/arvo/app/demo/push-hook.hoon b/pkg/arvo/app/demo/push-hook.hoon
deleted file mode 100644
index e69de29bb..000000000
diff --git a/pkg/arvo/gen/demo/run.hoon b/pkg/arvo/gen/demo/run.hoon
index 0512598d4..d3a8cd99d 100644
--- a/pkg/arvo/gen/demo/run.hoon
+++ b/pkg/arvo/gen/demo/run.hoon
@@ -1,8 +1,8 @@
 /-  *demo
 :-  %say
 |=  $:  [now=@da eny=@uvJ =beak]
-        [[=term lst=(list action) ~] ~]
+        [[=term lst=(list update) ~] ~]
     ==
 :-  %demo-update-0
-^-  action
+^-  update
 [%run [p.beak term] lst]
diff --git a/pkg/arvo/mar/demo/update-0.hoon b/pkg/arvo/mar/demo/update-0.hoon
index 5f378bf69..615821ef1 100644
--- a/pkg/arvo/mar/demo/update-0.hoon
+++ b/pkg/arvo/mar/demo/update-0.hoon
@@ -6,6 +6,7 @@
   |%
   ++  noun  upd
   ++  demo-update-1  upd
+  ++  demo-update  upd
   --
 ::
 ++  grab
diff --git a/pkg/arvo/mar/demo/update.hoon b/pkg/arvo/mar/demo/update.hoon
index e69de29bb..f1a88f1eb 100644
--- a/pkg/arvo/mar/demo/update.hoon
+++ b/pkg/arvo/mar/demo/update.hoon
@@ -0,0 +1,16 @@
+/-  *demo
+::
+|_  upd=update
+++  grad  %noun
+++  grow
+  |%
+  ++  noun  upd
+  ++  demo-update-1  upd
+  ++  demo-update-0  upd
+  --
+::
+++  grab
+  |%
+  ++  noun  update
+  --
+--