1 files changed, 1 insertions, 1 deletions
diff --git a/src/Binary.hs b/src/Binary.hs
index f3bc6477..f1c98620 100644
--- a/src/Binary.hs
+++ b/src/Binary.hs
@@ -1,4 +1,4 @@
-{-# OPTIONS -cpp #-}
+{-# OPTIONS_GHC -cpp -fglasgow-exts #-}
 --
 -- (c) The University of Glasgow 2002
 --