diff --git a/app/utf8-troubleshoot/Main.hs b/app/utf8-troubleshoot/Main.hs
index 2088486..20d59b3 100644
--- a/app/utf8-troubleshoot/Main.hs
+++ b/app/utf8-troubleshoot/Main.hs
@@ -40,6 +40,8 @@ import Data.Semigroup ((<>))
 
 import qualified Prelude as P
 
+-- See https://github.com/ndmitchell/hlint/commit/505a4d57b972f3ba605ad7a59721cef1f3d98a84
+{-# ANN module "HLint: ignore Unused LANGUAGE pragma" #-}
 
 -- | Encode a 'String' to be safe to print in ASCII-only.
 protect :: String -> String