diff --git a/gcodehs.cabal b/gcodehs.cabal
index f2b959b..f0a1094 100644
--- a/gcodehs.cabal
+++ b/gcodehs.cabal
@@ -65,7 +65,6 @@ executable gcodehs
                      , pipes
                      , pipes-safe
                      , optparse-applicative
-                     , optparse-applicative
   default-language:    Haskell2010
 
 test-suite gcodehs-test