diff --git a/foldl-transduce.cabal b/foldl-transduce.cabal
--- a/foldl-transduce.cabal
+++ b/foldl-transduce.cabal
@@ -1,5 +1,5 @@
 Name: foldl-transduce
-Version: 0.1.2.2
+Version: 0.1.2.3
 Cabal-Version: >=1.8.0.2
 Build-Type: Simple
 License: BSD3
diff --git a/src/Control/Foldl/Transduce/Text.hs b/src/Control/Foldl/Transduce/Text.hs
--- a/src/Control/Foldl/Transduce/Text.hs
+++ b/src/Control/Foldl/Transduce/Text.hs
@@ -22,6 +22,8 @@
 
 import Prelude hiding (lines)
 import Data.Char
+import Data.Monoid (mempty)
+import Data.Foldable (foldMap)
 import qualified Data.ByteString as B
 import qualified Data.Text 
 import qualified Data.Text as T