2 files changed, 8 insertions, 8 deletions
diff --git a/haddock-library/src/Documentation/Haddock/Types.hs b/haddock-library/src/Documentation/Haddock/Types.hs
index 3e25d230..b3118cc6 100644
--- a/haddock-library/src/Documentation/Haddock/Types.hs
+++ b/haddock-library/src/Documentation/Haddock/Types.hs
@@ -24,6 +24,12 @@ instance Foldable Header where
 instance Traversable Header where
   traverse f (Header l a) = Header l `fmap` f a
 
+
+deriving instance Show a => Show (Header a)
+deriving instance (Show a, Show b) => Show (DocH a b)
+deriving instance Eq a => Eq (Header a)
+deriving instance (Eq a, Eq b) => Eq (DocH a b)
+
 data Hyperlink = Hyperlink
   { hyperlinkUrl   :: String
   , hyperlinkLabel :: Maybe String
diff --git a/haddock-library/test/Documentation/Haddock/ParserSpec.hs b/haddock-library/test/Documentation/Haddock/ParserSpec.hs
index 3889d555..8e73848d 100644
--- a/haddock-library/test/Documentation/Haddock/ParserSpec.hs
+++ b/haddock-library/test/Documentation/Haddock/ParserSpec.hs
@@ -1,6 +1,5 @@
-{-# LANGUAGE OverloadedStrings, StandaloneDeriving
-             , FlexibleInstances, UndecidableInstances
-             , IncoherentInstances #-}
+{-# LANGUAGE OverloadedStrings, FlexibleInstances #-}
+{-# LANGUAGE IncoherentInstances, UndecidableInstances #-}
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 
 module Documentation.Haddock.ParserSpec (main, spec) where
@@ -14,11 +13,6 @@ import           Test.QuickCheck
 
 type Doc id = DocH () id
 
-deriving instance Show a => Show (Header a)
-deriving instance Show a => Show (Doc a)
-deriving instance Eq a => Eq (Header a)
-deriving instance Eq a => Eq (Doc a)
-
 instance IsString (Doc String) where
   fromString = DocString