diff --git a/hs2ats.cabal b/hs2ats.cabal
--- a/hs2ats.cabal
+++ b/hs2ats.cabal
@@ -1,5 +1,5 @@
 name:                hs2ats
-version:             0.2.1.6
+version:             0.2.1.7
 synopsis:            Create ATS types from Haskell types
 description:         This package enables scanning Haskell source files for data types and then generating [ATS](http://www.ats-lang.org/) types from them.
 homepage:            https://github.com/vmchale/hs2ats#readme
diff --git a/src/Language/ATS/Generate.hs b/src/Language/ATS/Generate.hs
--- a/src/Language/ATS/Generate.hs
+++ b/src/Language/ATS/Generate.hs
@@ -167,6 +167,7 @@
                , RecordWildCards
                , BangPatterns
                , ExplicitForAll
+               , FlexibleContexts
                ]
 
 -- | Given a string containing Haskell, return a string containing ATS and