From 5a47f3422a9be92d9eec629032ac7af1416dea47 Mon Sep 17 00:00:00 2001
From: John MacFarlane <jgm@berkeley.edu>
Date: Sat, 25 Feb 2017 23:56:32 +0100
Subject: Fixed type sig for older GHC versions.

---
 src/Text/Pandoc/Writers/Shared.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/Text/Pandoc/Writers')

diff --git a/src/Text/Pandoc/Writers/Shared.hs b/src/Text/Pandoc/Writers/Shared.hs
index 991ce5437..3ff7d47b2 100644
--- a/src/Text/Pandoc/Writers/Shared.hs
+++ b/src/Text/Pandoc/Writers/Shared.hs
@@ -60,7 +60,7 @@ import Data.Maybe ( isJust )
 -- Variables overwrite metadata fields with the same names.
 -- If multiple variables are set with the same name, a list is
 -- assigned.  Does nothing if 'writerTemplate' is Nothing.
-metaToJSON :: Monad m
+metaToJSON :: (Functor m, Monad m)
            => WriterOptions
            -> ([Block] -> m String)
            -> ([Inline] -> m String)
-- 
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