diff --git a/app/Main.hs b/app/Main.hs
index 244e334..d31c457 100644
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -23,13 +23,14 @@ puzzleTest :: Puzzle a -> TestTree
 puzzleTest p =
     testGroup pt $
         ["examples", "real"] <&> \t ->
-            withResource (maybe (fail "parse failure") pure . p.parse =<< readFile ("inputs/" <> t <> "/" <> pt)) mempty \input ->
+            withResource (parseFile $ "inputs/" <> t <> "/" <> pt) mempty \input ->
                 testGroup t $
                     [("1", p.part1), ("2", p.part2)] <&> \(n, pp) ->
                         goldenVsString n ("outputs/" <> t <> "/" <> pt <> "/" <> n) $
                             BL.fromStrict . encodeUtf8 . pp.solve <$> input
   where
     pt = show p.number
+    parseFile fp = maybe (fail "parse failure") pure . p.parse =<< readFile fp
 
 data Puzzle input = Puzzle
     { number :: Word