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| -rw-r--r-- | web/tutorials/04-compilers.markdown | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/web/tutorials/04-compilers.markdown b/web/tutorials/04-compilers.markdown index a1fca37..b6b1c3c 100644 --- a/web/tutorials/04-compilers.markdown +++ b/web/tutorials/04-compilers.markdown @@ -92,7 +92,7 @@ And `$title$` like this: titleContext :: Context a titleContext = field "title" $ \item -> do metadata <- getMetadata (itemIdentifier item) - return $ fromMaybe "No title" $ M.lookup "title" metadata + return $ fromMaybe "No title" $ lookupString "title" metadata ``` And compose them using the `Monoid` instance: |