diff --git a/Text/Parse/Units.hs b/Text/Parse/Units.hs
--- a/Text/Parse/Units.hs
+++ b/Text/Parse/Units.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE LambdaCase, NoMonomorphismRestriction, FlexibleContexts, RankNTypes,
-             Safe, DeriveGeneric, DeriveDataTypeable, CPP #-}
+             Safe, DeriveGeneric, DeriveDataTypeable, CPP, StandaloneDeriving #-}
 {-# OPTIONS_HADDOCK prune #-}
 
 -----------------------------------------------------------------------------
diff --git a/units-parser.cabal b/units-parser.cabal
--- a/units-parser.cabal
+++ b/units-parser.cabal
@@ -1,5 +1,5 @@
 name:           units-parser
-version:        0.1.1.1
+version:        0.1.1.2
 cabal-version:  >= 1.10
 synopsis:       A parser for units of measure
 category:       Text