diff --git a/lib/Quox/Typing/Context.idr b/lib/Quox/Typing/Context.idr
index 15e5b1e..385721f 100644
--- a/lib/Quox/Typing/Context.idr
+++ b/lib/Quox/Typing/Context.idr
@@ -4,8 +4,10 @@ import Quox.Syntax
 import Quox.Context
 import Quox.Pretty
 import public Data.Singleton
+import Derive.Prelude
 
 %default total
+%language ElabReflection
 
 
 public export
@@ -36,6 +38,7 @@ record TyContext d n where
   tnames : BContext n -- only used for printing
   qtys   : QContext n -- only used for printing
 %name TyContext ctx
+%runElab deriveIndexed "TyContext" [Show]
 
 
 public export
@@ -49,6 +52,7 @@ record EqContext n where
   tnames  : BContext n -- only used for printing
   qtys    : QContext n -- only used for printing
 %name EqContext ctx
+%runElab deriveIndexed "EqContext" [Show]
 
 
 public export
@@ -58,6 +62,7 @@ record WhnfContext d n where
   tnames : BContext n
   tctx   : TContext d n
 %name WhnfContext ctx
+%runElab deriveIndexed "WhnfContext" [Show]
 
 namespace TContext
   export %inline
diff --git a/lib/Quox/Typing/Error.idr b/lib/Quox/Typing/Error.idr
index 5975445..342fb05 100644
--- a/lib/Quox/Typing/Error.idr
+++ b/lib/Quox/Typing/Error.idr
@@ -8,6 +8,10 @@ import Quox.Pretty
 
 import Data.List
 import Control.Eff
+import Derive.Prelude
+
+%language ElabReflection
+%hide TT.Name
 
 
 public export
@@ -15,6 +19,7 @@ record NameContexts d n where
   constructor MkNameContexts
   dnames : BContext d
   tnames : BContext n
+%runElab deriveIndexed "NameContexts" [Show]
 
 namespace NameContexts
   export
@@ -105,6 +110,7 @@ data Error
     (Elim 0 n) (Elim 0 n)
     Error
 %name Error err
+%runElab derive "Error" [Show]
 
 public export
 ErrorEff : Type -> Type
diff --git a/tests/TypingImpls.idr b/tests/TypingImpls.idr
index febb152..e149f50 100644
--- a/tests/TypingImpls.idr
+++ b/tests/TypingImpls.idr
@@ -12,11 +12,6 @@ import Derive.Prelude
 %language ElabReflection
 
 
-%runElab deriveIndexed "TyContext" [Show]
-%runElab deriveIndexed "EqContext" [Show]
-%runElab deriveIndexed "NameContexts" [Show]
-%runElab derive "Error" [Show]
-
 export
 ToInfo Error where
   toInfo err =