Added ReaderT to our stack.

1 files changed, 2 insertions, 1 deletions

diff --git a/src/Text/Hakyll/Tags.hs b/src/Text/Hakyll/Tags.hs
index 625584e..209d479 100644
--- a/src/Text/Hakyll/Tags.hs
+++ b/src/Text/Hakyll/Tags.hs
@@ -9,6 +9,7 @@ module Text.Hakyll.Tags
 import qualified Data.Map as M
 import Data.List (intercalate)
 import Control.Monad (foldM)
+import Text.Hakyll.Hakyll (Hakyll)
 
 import Text.Hakyll.Context (ContextManipulation, renderValue)
 import Text.Hakyll.Regex
@@ -19,7 +20,7 @@ import Control.Arrow (second)
 -- | Read a tag map. This creates a map from tags to page paths. This function
 --   assumes the tags are located in the `tags` metadata field, separated by
 --   commas.
-readTagMap :: [FilePath] -> IO (M.Map String [FilePath])
+readTagMap :: [FilePath] -> Hakyll (M.Map String [FilePath])
 readTagMap paths = foldM addPaths M.empty paths
   where
     addPaths current path = do