diff --git a/src/Breve/Generator.hs b/src/Breve/Generator.hs
index 5a00861..122d8a3 100644
--- a/src/Breve/Generator.hs
+++ b/src/Breve/Generator.hs
@@ -16,22 +16,22 @@ import Data.Text.Encoding     (encodeUtf8)
 type Name = Text
 type Url  = Text
 
--- Choose a random element of a list
+-- | Takes a random element of a list
 choice :: [a] -> State StdGen a
 choice xs = (xs !!) <$> randomSt (0, length xs - 1)
   where randomSt = state . randomR
 
--- Generate a random phonetic string
+-- | Generates a random phonetic string
 word :: State StdGen Name
 word = pack <$> replicateM 10 letter where
   vowels     = "aeiou"
   consonants = "bcdfghjklmnpqrstvwxyz"
   letter     = choice [vowels, consonants] >>= choice
 
--- SHA256 hash to seed a generator
+-- | SHA256 hash to seed a generator
 intHash :: Url -> Int
 intHash = decode . fromStrict . hash . encodeUtf8
 
--- Assign a unique name to the url
+-- | Assigns a unique name to the url
 nameHash :: Url -> Name
 nameHash = evalState word . mkStdGen . intHash
diff --git a/src/Breve/Settings.hs b/src/Breve/Settings.hs
index 68474d3..db9dea3 100644
--- a/src/Breve/Settings.hs
+++ b/src/Breve/Settings.hs
@@ -1,5 +1,3 @@
-{-# LANGUAGE OverloadedStrings #-}
-
 module Breve.Settings where
 
 import Control.Monad                   (when)
diff --git a/src/Breve/UrlTable.hs b/src/Breve/UrlTable.hs
index 5ffb3f1..7ffb552 100644
--- a/src/Breve/UrlTable.hs
+++ b/src/Breve/UrlTable.hs
@@ -14,14 +14,14 @@ import qualified Data.HashTable.IO as H
 
 type UrlTable = H.CuckooHashTable Name Url
 
--- Periodically write a url table to a file
+-- | Periodically write a url table to a file
 sync :: UrlTable -> FilePath -> IO ()
 sync table file = forever $ do
   threadDelay (round 3.0e8)
   content <- show <$> H.toList table
   writeFile file content
 
--- Load a url table from a file
+-- | Load a url table from a file
 load :: FilePath -> IO UrlTable
 load file = do
   content <- readFile file
@@ -31,11 +31,11 @@ load file = do
   forkIO (sync table file)
   return table
 
--- Insert the url in a table and return the name
+-- | Insert the url in a table and return the name
 insert :: UrlTable -> Url -> IO Name
 insert table url = H.insert table new url >> return new
   where new = nameHash url
 
--- Lookup a table for the associated url
+-- | Lookup a table for the associated url
 extract :: UrlTable -> Name -> IO (Maybe Url)
 extract = H.lookup