1 files changed, 1 insertions, 0 deletions
diff --git a/Common.hs b/Common.hs
index 6612c9c54..4d6165ac5 100644
--- a/Common.hs
+++ b/Common.hs
@@ -11,6 +11,7 @@ import Control.Exception.Extensible as X (IOException)
 import Data.Maybe as X
 import Data.List as X hiding (head, tail, init, last)
 import Data.String.Utils as X hiding (join)
+import Data.Monoid as X
 
 import System.FilePath as X
 import System.Directory as X