Update Readme.md

1 files changed, 1 insertions, 1 deletions

diff --git a/Readme.md b/Readme.md
index 1f4b17d..1da89e6 100644
--- a/Readme.md
+++ b/Readme.md
@@ -55,7 +55,7 @@ By default `walint` prints lints in a hopefully human-readable manner. If the
 `--json` option is given, it will instead give a json that should conform to
 the following schema:
 
-```purescript
+```haskell
 -- | The main type of walint's output
 type Output = 
   { mapLints :: Map FilePath MapLint