diff --git a/README.md b/README.md
index f893e4f..3d450be 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ fetch <method> <url> <options>
 ```
 
  * `<method>` is `Effect.Aff.HTTP.Request.Method`:
-        ```purescript
+        <!-- language: purescript -->
         data Method
           = GET
           | PUT
@@ -17,13 +17,11 @@ fetch <method> <url> <options>
           | DELETE
           | PATCH
           | HEAD
-        ```
  * `<url>` is `Data.URL.URL` (from [`url-immutable`](https://pursuit.purescript.org/packages/purescript-url-immutable/))
  * `<options>` is a partial record of:
-        ```purescript
+        <!-- language: purescript -->
         type OptionalFields =
           ( body :: Body
           , headers :: Headers
           , credentials :: Credentials
           )
-        ```