diff --git a/library/ListT.hs b/library/ListT.hs
--- a/library/ListT.hs
+++ b/library/ListT.hs
@@ -34,6 +34,7 @@
 where
 
 import ListT.Prelude hiding (uncons, toList, yield, fold, traverse, head, tail, take, drop, repeat, null, traverse_, splitAt)
+import Control.Monad
 
 -- |
 -- A proper implementation of the list monad-transformer.
diff --git a/list-t.cabal b/list-t.cabal
--- a/list-t.cabal
+++ b/list-t.cabal
@@ -1,7 +1,7 @@
 name:
   list-t
 version:
-  1.0.3
+  1.0.3.1
 synopsis:
   ListT done right
 description: