1 files changed, 1 insertions, 0 deletions
diff --git a/pkgs/development/libraries/haskell/mainland-pretty/default.nix b/pkgs/development/libraries/haskell/mainland-pretty/default.nix
index 8bd0f2dfc21..1383efab868 100644
--- a/pkgs/development/libraries/haskell/mainland-pretty/default.nix
+++ b/pkgs/development/libraries/haskell/mainland-pretty/default.nix
@@ -7,6 +7,7 @@ cabal.mkDerivation (self: {
   version = "0.2.7";
   sha256 = "1g4s2xscj6dpkcghs5lws658ki0rhriivpdr5ilcycvr28k3l35q";
   buildDepends = [ srcloc text ];
+  jailbreak = true;
   meta = {
     homepage = "http://www.eecs.harvard.edu/~mainland/";
     description = "Pretty printing designed for printing source code";