diff --git a/pkgs/development/libraries/haskell/hjsmin/default.nix b/pkgs/development/libraries/haskell/hjsmin/default.nix
index b060d3c6efe4..eeed299af74b 100644
--- a/pkgs/development/libraries/haskell/hjsmin/default.nix
+++ b/pkgs/development/libraries/haskell/hjsmin/default.nix
@@ -16,6 +16,7 @@ cabal.mkDerivation (self: {
     blazeBuilder Cabal HUnit languageJavascript QuickCheck
     testFramework testFrameworkHunit text
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://github.com/alanz/hjsmin";
     description = "Haskell implementation of a javascript minifier";