diff --git a/pkgs/tools/package-management/cabal-install/0.14.0.nix b/pkgs/tools/package-management/cabal-install/0.14.0.nix
index ecbd46de52c2..15fe5f1e22ce 100644
--- a/pkgs/tools/package-management/cabal-install/0.14.0.nix
+++ b/pkgs/tools/package-management/cabal-install/0.14.0.nix
@@ -9,6 +9,10 @@ cabal.mkDerivation (self: {
   buildDepends = [
     Cabal filepath HTTP mtl network random time zlib
   ];
+  postInstall = ''
+    mkdir $out/etc
+    mv bash-completion $out/etc/bash_completion.d
+  '';
   meta = {
     homepage = "http://www.haskell.org/cabal/";
     description = "The command-line interface for Cabal and Hackage";