diff --git a/base/src/Data/Macaw/Architecture/Info.hs b/base/src/Data/Macaw/Architecture/Info.hs
index 309a460d..bcbdaa97 100644
--- a/base/src/Data/Macaw/Architecture/Info.hs
+++ b/base/src/Data/Macaw/Architecture/Info.hs
@@ -3,7 +3,6 @@ This defines the architecture-specific information needed for code discovery.
 -}
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
-{-# LANGUAGE KindSignatures #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE TypeFamilies #-}
 module Data.Macaw.Architecture.Info
diff --git a/x86/src/Data/Macaw/X86.hs b/x86/src/Data/Macaw/X86.hs
index 53289334..c385a6fe 100644
--- a/x86/src/Data/Macaw/X86.hs
+++ b/x86/src/Data/Macaw/X86.hs
@@ -9,17 +9,12 @@ x86_64 programs.
 {-# LANGUAGE FlexibleContexts #-}
 {-# LANGUAGE FlexibleInstances #-}
 {-# LANGUAGE GADTs #-}
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
-{-# LANGUAGE KindSignatures #-}
 {-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE PatternGuards #-}
 {-# LANGUAGE PatternSynonyms #-}
 {-# LANGUAGE RankNTypes #-}
 {-# LANGUAGE ScopedTypeVariables #-}
 {-# LANGUAGE TypeFamilies #-}
-{-# LANGUAGE TypeOperators #-}
-{-# LANGUAGE TypeSynonymInstances #-}
-{-# LANGUAGE ViewPatterns #-}
 {-# LANGUAGE NondecreasingIndentation #-}
 module Data.Macaw.X86
        ( x86_64_info