diff --git a/pkgs/development/libraries/haskell/vty-ui/default.nix b/pkgs/development/libraries/haskell/vty-ui/default.nix
index 5d0c9ffd91a..3b38db8c1de 100644
--- a/pkgs/development/libraries/haskell/vty-ui/default.nix
+++ b/pkgs/development/libraries/haskell/vty-ui/default.nix
@@ -11,6 +11,7 @@ cabal.mkDerivation (self: {
   buildDepends = [
     filepath mtl QuickCheck random regexBase stm text time vector vty
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://jtdaugherty.github.com/vty-ui/";
     description = "An interactive terminal user interface library for Vty";