diff --git a/tests/Selenium.hs b/tests/Selenium.hs
index 9f34b94..070c90a 100644
--- a/tests/Selenium.hs
+++ b/tests/Selenium.hs
@@ -2,6 +2,7 @@
 {-# LANGUAGE IncoherentInstances #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE StandaloneDeriving #-}
+{-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE NoImplicitPrelude #-}