4 files changed, 4 insertions, 2 deletions

diff --git a/src/Text/BlazeT/Renderer/Pretty.hs b/src/Text/BlazeT/Renderer/Pretty.hs
index fa8cdad..5e033ac 100644
--- a/src/Text/BlazeT/Renderer/Pretty.hs
+++ b/src/Text/BlazeT/Renderer/Pretty.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE RankNTypes #-}
 module Text.BlazeT.Renderer.Pretty
     ( renderMarkup
     , renderHtml
diff --git a/src/Text/BlazeT/Renderer/String.hs b/src/Text/BlazeT/Renderer/String.hs
index 9f0e0a0..45c4786 100644
--- a/src/Text/BlazeT/Renderer/String.hs
+++ b/src/Text/BlazeT/Renderer/String.hs
@@ -1,11 +1,10 @@
+{-# LANGUAGE RankNTypes #-}
 module Text.BlazeT.Renderer.String
     ( fromChoiceString
     , renderMarkup
     , renderHtml
   ) where
 
-import           Control.Monad
-import           Control.Monad.Identity
 import           Text.Blaze.Internal (ChoiceString)
 import qualified Text.Blaze.Renderer.String as BU
 import           Text.BlazeT
diff --git a/src/Text/BlazeT/Renderer/Text.hs b/src/Text/BlazeT/Renderer/Text.hs
index 991c81c..a595bd1 100644
--- a/src/Text/BlazeT/Renderer/Text.hs
+++ b/src/Text/BlazeT/Renderer/Text.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE RankNTypes #-}
 module Text.BlazeT.Renderer.Text
     ( renderMarkupBuilder
     , renderMarkupBuilderWith
diff --git a/src/Text/BlazeT/Renderer/Utf8.hs b/src/Text/BlazeT/Renderer/Utf8.hs
index b5fd656..2874b68 100644
--- a/src/Text/BlazeT/Renderer/Utf8.hs
+++ b/src/Text/BlazeT/Renderer/Utf8.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE RankNTypes #-}
 {-# OPTIONS_GHC -fsimpl-tick-factor=230 #-}
 
 -- the above option was not needed with