diff --git a/pkgs/development/libraries/haskell/persistent-template/default.nix b/pkgs/development/libraries/haskell/persistent-template/default.nix
index 994632c40e2..98f9e91e983 100644
--- a/pkgs/development/libraries/haskell/persistent-template/default.nix
+++ b/pkgs/development/libraries/haskell/persistent-template/default.nix
@@ -13,6 +13,7 @@ cabal.mkDerivation (self: {
   testDepends = [
     aeson hspec persistent QuickCheck text transformers
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://www.yesodweb.com/book/persistent";
     description = "Type-safe, non-relational, multi-backend persistence";