diff --git a/lib/Urbit/Ob/Co.hs b/lib/Urbit/Ob/Co.hs
--- a/lib/Urbit/Ob/Co.hs
+++ b/lib/Urbit/Ob/Co.hs
@@ -15,8 +15,8 @@
 -- Roughly analogous to the +co arm in hoon.hoon.
 
 module Urbit.Ob.Co (
-    Patp
-  , Patq
+    Patp(..)
+  , Patq(..)
 
   , patp
   , patq
diff --git a/urbit-hob.cabal b/urbit-hob.cabal
--- a/urbit-hob.cabal
+++ b/urbit-hob.cabal
@@ -1,5 +1,5 @@
 name:           urbit-hob
-version:        0.3.2
+version:        0.3.3
 synopsis:       Hoon-style atom manipulation and printing functions
 homepage:       https://github.com/urbit/urbit-hob
 bug-reports:    https://github.com/urbit/urbit-hob/issues
@@ -10,6 +10,7 @@
 license:        MIT
 license-file:   LICENSE
 build-type:     Simple
+tested-with:    GHC == 8.6.5, GHC == 8.8.3
 cabal-version:  >= 1.10
 description:
   Here you can primarily find functions for dealing with the \"patp\" and