diff --git a/flake.nix b/flake.nix
index 000ce0df1..1208ed376 100644
--- a/flake.nix
+++ b/flake.nix
@@ -84,6 +84,7 @@
           hooks = {
             deadnix.enable = true;
             statix.enable = true;
+            stylish-haskell.enable = true;
             typos.enable = true;
             yamllint.enable = true;
           };
diff --git a/palette-generator/Ai/Evolutionary.hs b/palette-generator/Ai/Evolutionary.hs
index 634bfd113..c6a0c8be3 100644
--- a/palette-generator/Ai/Evolutionary.hs
+++ b/palette-generator/Ai/Evolutionary.hs
@@ -2,12 +2,12 @@
 
 module Ai.Evolutionary ( Species(..), evolve ) where
 
-import Data.Ord ( Down(Down), comparing )
-import Data.Vector ( (!) )
-import qualified Data.Vector as V
-import Data.Vector.Algorithms.Intro ( selectBy )
-import System.Random ( randomRIO )
-import Text.Printf ( printf )
+import           Data.Ord                     (Down (Down), comparing)
+import           Data.Vector                  ((!))
+import qualified Data.Vector                  as V
+import           Data.Vector.Algorithms.Intro (selectBy)
+import           System.Random                (randomRIO)
+import           Text.Printf                  (printf)
 
 numSurvivors :: Int
 numSurvivors = 500
@@ -96,7 +96,7 @@ selectSurvivors environment population =
 shouldContinue :: [Double] -- ^ Fitness history
                -> Bool
 shouldContinue (x:y:_) = x /= y
-shouldContinue _ = True
+shouldContinue _       = True
 
 evolutionLoop :: Species e g
               => e -- ^ Environment
diff --git a/palette-generator/Data/Colour.hs b/palette-generator/Data/Colour.hs
index db189062f..45dc33d38 100644
--- a/palette-generator/Data/Colour.hs
+++ b/palette-generator/Data/Colour.hs
@@ -1,13 +1,13 @@
 module Data.Colour ( LAB(..), RGB(..), deltaE, lab2rgb, rgb2lab ) where
 
 data LAB = LAB { lightness :: Double
-               , channelA :: Double
-               , channelB :: Double
+               , channelA  :: Double
+               , channelB  :: Double
                }
 
-data RGB = RGB { red :: Double
+data RGB = RGB { red   :: Double
                , green :: Double
-               , blue :: Double
+               , blue  :: Double
                }
 
 -- Based on https://github.com/antimatter15/rgb-lab/blob/master/color.js
diff --git a/palette-generator/Stylix/Main.hs b/palette-generator/Stylix/Main.hs
index d4a49e609..2170d6243 100644
--- a/palette-generator/Stylix/Main.hs
+++ b/palette-generator/Stylix/Main.hs
@@ -1,13 +1,13 @@
-import Ai.Evolutionary ( evolve )
-import Codec.Picture ( DynamicImage, convertRGB8, readImage )
-import Data.Colour ( lab2rgb )
-import qualified Data.Vector as V
-import Stylix.Output ( makeOutputTable )
-import Stylix.Palette ( )
-import System.Environment ( getArgs )
-import System.Exit ( die )
-import System.Random ( setStdGen, mkStdGen )
-import Text.JSON ( encode )
+import           Ai.Evolutionary    (evolve)
+import           Codec.Picture      (DynamicImage, convertRGB8, readImage)
+import           Data.Colour        (lab2rgb)
+import qualified Data.Vector        as V
+import           Stylix.Output      (makeOutputTable)
+import           Stylix.Palette     ()
+import           System.Environment (getArgs)
+import           System.Exit        (die)
+import           System.Random      (mkStdGen, setStdGen)
+import           Text.JSON          (encode)
 
 -- | Load an image file.
 loadImage :: String -- ^ Path to the file
diff --git a/palette-generator/Stylix/Output.hs b/palette-generator/Stylix/Output.hs
index 9d6733cfe..682d42123 100644
--- a/palette-generator/Stylix/Output.hs
+++ b/palette-generator/Stylix/Output.hs
@@ -1,10 +1,10 @@
 module Stylix.Output ( makeOutputTable ) where
 
-import Data.Colour ( RGB(RGB) )
+import           Data.Colour (RGB (RGB))
 import qualified Data.Vector as V
-import Data.Word ( Word8 )
-import Text.JSON ( JSObject, toJSObject )
-import Text.Printf ( printf )
+import           Data.Word   (Word8)
+import           Text.JSON   (JSObject, toJSObject)
+import           Text.Printf (printf)
 
 toHexNum :: Double -> Word8
 toHexNum = truncate
diff --git a/palette-generator/Stylix/Palette.hs b/palette-generator/Stylix/Palette.hs
index 1102a3382..1b8b0d784 100644
--- a/palette-generator/Stylix/Palette.hs
+++ b/palette-generator/Stylix/Palette.hs
@@ -1,14 +1,16 @@
-{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses #-}
+{-# LANGUAGE FlexibleInstances     #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
 
 module Stylix.Palette ( ) where
 
-import Ai.Evolutionary ( Species(..) )
-import Codec.Picture ( Image(imageWidth, imageHeight), PixelRGB8(PixelRGB8), pixelAt )
-import Data.Colour ( LAB(lightness), RGB(RGB), deltaE, rgb2lab )
-import Data.List ( delete )
-import Data.Vector ( (//) )
-import qualified Data.Vector as V
-import System.Random ( randomRIO )
+import           Ai.Evolutionary (Species (..))
+import           Codec.Picture   (Image (imageHeight, imageWidth),
+                                  PixelRGB8 (PixelRGB8), pixelAt)
+import           Data.Colour     (LAB (lightness), RGB (RGB), deltaE, rgb2lab)
+import           Data.List       (delete)
+import           Data.Vector     ((//))
+import qualified Data.Vector     as V
+import           System.Random   (randomRIO)
 
 -- | Extract the primary scale from a palette.
 primary :: V.Vector a -> V.Vector a
@@ -73,9 +75,9 @@ instance Species (String, Image PixelRGB8) (V.Vector LAB) where
 
         scheme = case polarity of
           "either" -> min lightScheme darkScheme
-          "light" -> lightScheme
-          "dark" -> darkScheme
-          _ -> error ("Invalid polarity: " ++ polarity)
+          "light"  -> lightScheme
+          "dark"   -> darkScheme
+          _        -> error ("Invalid polarity: " ++ polarity)
 
         {-
         For light themes, the background is bright and the text is dark.