diff --git a/pkgs/development/libraries/haskell/haskeline/0.7.0.3.nix b/pkgs/development/libraries/haskell/haskeline/0.7.0.3.nix
index c804e328500d..1e8c406c21b3 100644
--- a/pkgs/development/libraries/haskell/haskeline/0.7.0.3.nix
+++ b/pkgs/development/libraries/haskell/haskeline/0.7.0.3.nix
@@ -1,10 +1,10 @@
-{ cabal, filepath, terminfo, transformers }:
+{ cabal, filepath, terminfo, transformers, utf8String }:
 
 cabal.mkDerivation (self: {
   pname = "haskeline";
   version = "0.7.0.3";
   sha256 = "10xc229ddk4g87i78vgjbfr7sii28fx00qwnggb5x7sfigfca8sg";
-  buildDepends = [ filepath terminfo transformers ];
+  buildDepends = [ filepath terminfo transformers utf8String ];
   configureFlags = "-fterminfo";
   meta = {
     homepage = "http://trac.haskell.org/haskeline";