1 files changed, 2 insertions, 1 deletions
diff --git a/DragPane.hs b/DragPane.hs
index fa73c0b..0546cb0 100644
--- a/DragPane.hs
+++ b/DragPane.hs
@@ -1,4 +1,5 @@
-{-# LANGUAGE FlexibleInstances #-}
+{-# OPTIONS_GHC -fglasgow-exts #-} -- For deriving Data/Typeable
+{-# LANGUAGE FlexibleInstances, MultiParamTypeClasses, PatternGuards, TypeSynonymInstances #-}
 
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