diff --git a/Decoration.hs b/Decoration.hs
index cbbe8638..7ad124c7 100644
--- a/Decoration.hs
+++ b/Decoration.hs
@@ -1,3 +1,4 @@
+{-# OPTIONS -fglasgow-exts #-}
 module XMonadContrib.Decoration ( newDecoration ) where
 
 import Data.Bits ( (.|.) )
diff --git a/GreedyView.hs b/GreedyView.hs
index ea6f305e..4904fbaf 100644
--- a/GreedyView.hs
+++ b/GreedyView.hs
@@ -1,3 +1,4 @@
+{-# OPTIONS -fglasgow-exts #-}
 -- Maintainer: Spencer Janssen <sjanssen@cse.unl.edu>
 --
 -- greedyView is an alternative to standard workspace switching.  When a
diff --git a/Mosaic.hs b/Mosaic.hs
index 7c4ad630..c3f6f1a9 100644
--- a/Mosaic.hs
+++ b/Mosaic.hs
@@ -1,3 +1,4 @@
+{-# OPTIONS -fglasgow-exts #-}
 module XMonadContrib.Mosaic ( mosaic, expandWindow, shrinkWindow, squareWindow, myclearWindow,
                               tallWindow, wideWindow, flexibleWindow,
                               getName, withNamedWindow ) where
diff --git a/WorkspaceDir.hs b/WorkspaceDir.hs
index 94a07e4a..4b04ff0e 100644
--- a/WorkspaceDir.hs
+++ b/WorkspaceDir.hs
@@ -1,3 +1,4 @@
+{-# OPTIONS -fglasgow-exts #-}
 module XMonadContrib.WorkspaceDir ( workspaceDir, changeDir ) where
 
 -- to use: