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-rw-r--r--src/compiler/GF/Compile/PGFtoHaskell.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/compiler/GF/Compile/PGFtoHaskell.hs b/src/compiler/GF/Compile/PGFtoHaskell.hs
index bc8e59f57..948e3a606 100644
--- a/src/compiler/GF/Compile/PGFtoHaskell.hs
+++ b/src/compiler/GF/Compile/PGFtoHaskell.hs
@@ -51,7 +51,7 @@ grammar2haskell opts name gr = foldr (++++) [] $
derivingClause
| dataExt = "deriving (Show,Data)"
| otherwise = "deriving Show"
- extraImports | gadt = ["import Control.Monad.Identity", "import Data.Monoid"]
+ extraImports | gadt = ["import Control.Monad.Identity", "import Control.Monad", "import Data.Monoid"]
| dataExt = ["import Data.Data"]
| otherwise = []
pgfImports | pgf2 = ["import PGF2 hiding (Tree)", "", "showCId :: CId -> String", "showCId = id"]