1 files changed, 1 insertions, 0 deletions
diff --git a/Utility/Url.hs b/Utility/Url.hs
index 9537e86b7..2ef1167e5 100644
--- a/Utility/Url.hs
+++ b/Utility/Url.hs
@@ -8,6 +8,7 @@
 {-# LANGUAGE CPP #-}
 {-# LANGUAGE OverloadedStrings #-}
 {-# LANGUAGE RankNTypes #-}
+{-# LANGUAGE FlexibleContexts #-}
 
 module Utility.Url (
 	URLString,