diff --git a/parsers.cabal b/parsers.cabal
--- a/parsers.cabal
+++ b/parsers.cabal
@@ -1,6 +1,6 @@
 name:          parsers
 category:      Text, Parsing
-version:       0.8
+version:       0.8.1
 license:       BSD3
 cabal-version: >= 1.10
 license-file:  LICENSE
diff --git a/src/Text/Parser/Token.hs b/src/Text/Parser/Token.hs
--- a/src/Text/Parser/Token.hs
+++ b/src/Text/Parser/Token.hs
@@ -1,5 +1,9 @@
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
 {-# OPTIONS_GHC -fspec-constr -fspec-constr-count=8 #-}
+{-# LANGUAGE CPP #-}
+#if defined(__GLASGOW_HASKELL__) && __GLASGOW_HASKELL__ >= 702
+{-# LANGUAGE Trustworthy #-}
+#endif
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Text.Parser.Token
diff --git a/src/Text/Parser/Token/Style.hs b/src/Text/Parser/Token/Style.hs
--- a/src/Text/Parser/Token/Style.hs
+++ b/src/Text/Parser/Token/Style.hs
@@ -1,4 +1,8 @@
 {-# LANGUAGE DeriveDataTypeable #-}
+{-# LANGUAGE CPP #-}
+#if defined(__GLASGOW_HASKELL__) && __GLASGOW_HASKELL__ >= 702
+{-# LANGUAGE Trustworthy #-}
+#endif
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Text.Parser.Token.Style