diff --git a/Git/Construct.hs b/Git/Construct.hs
index 23022eb957..12eae54c34 100644
--- a/Git/Construct.hs
+++ b/Git/Construct.hs
@@ -5,6 +5,8 @@
  - Licensed under the GNU GPL version 3 or higher.
  -}
 
+{-# LANGUAGE CPP #-}
+
 module Git.Construct (
 	fromCwd,
 	fromAbsPath,