diff --git a/pkg/arvo/mar/atom.hoon b/pkg/arvo/mar/atom.hoon
deleted file mode 100644
index 4f90046221..0000000000
--- a/pkg/arvo/mar/atom.hoon
+++ /dev/null
@@ -1,18 +0,0 @@
-::
-::::  /hoon/atom/mar
-  ::
-/?    310
-::
-::::  A minimal atom mark
-  ::
-=,  mimes:html
-|_  ato=@
-++  grab  |%
-          ++  noun  @
-          ++  mime  |=([* p=octs] q.p)
-          --
-++  grow  |%
-          ++  mime  [/application/x-urb-unknown (as-octs ato)]
-          --
-++  grad  %mime
---
diff --git a/pkg/arvo/mar/atom.hoon b/pkg/arvo/mar/atom.hoon
new file mode 120000
index 0000000000..dce311c9ec
--- /dev/null
+++ b/pkg/arvo/mar/atom.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/atom.hoon
\ No newline at end of file
diff --git a/pkg/base-dev/mar/atom.hoon b/pkg/base-dev/mar/atom.hoon
new file mode 100644
index 0000000000..4f90046221
--- /dev/null
+++ b/pkg/base-dev/mar/atom.hoon
@@ -0,0 +1,18 @@
+::
+::::  /hoon/atom/mar
+  ::
+/?    310
+::
+::::  A minimal atom mark
+  ::
+=,  mimes:html
+|_  ato=@
+++  grab  |%
+          ++  noun  @
+          ++  mime  |=([* p=octs] q.p)
+          --
+++  grow  |%
+          ++  mime  [/application/x-urb-unknown (as-octs ato)]
+          --
+++  grad  %mime
+--