diff --git a/morfette.cabal b/morfette.cabal
--- a/morfette.cabal
+++ b/morfette.cabal
@@ -1,5 +1,5 @@
 Name:       morfette
-Version:    0.4.6
+Version:    0.4.7
 Homepage:   https://github.com/gchrupala/morfette
 Synopsis:   A tool for supervised learning of morphology
 Description: Morfette is a tool for supervised learning of inflectional
diff --git a/src/GramLab/Commands.hs b/src/GramLab/Commands.hs
--- a/src/GramLab/Commands.hs
+++ b/src/GramLab/Commands.hs
@@ -6,6 +6,7 @@
                         , defaultMain
 )
 where
+import Prelude hiding ((<>))
 import Text.PrettyPrint(renderStyle,render,nest,vcat,hsep,style,Mode(..),mode,text,(<>),($$),($+$),(<+>))
 import System.Console.GetOpt
 import System.Environment