diff --git a/pkgs/development/libraries/haskell/snap-web-routes/default.nix b/pkgs/development/libraries/haskell/snap-web-routes/default.nix
index 71b8c3c49da3..a8252a4f3f02 100644
--- a/pkgs/development/libraries/haskell/snap-web-routes/default.nix
+++ b/pkgs/development/libraries/haskell/snap-web-routes/default.nix
@@ -7,6 +7,7 @@ cabal.mkDerivation (self: {
   version = "0.5.0.0";
   sha256 = "1ml0b759k2n9bd2x4akz4dfyk8ywnpgrdlcymng4vhjxbzngnniv";
   buildDepends = [ heist mtl snap snapCore text webRoutes xmlhtml ];
+  jailbreak = true;
   meta = {
     homepage = "https://github.com/lukerandall/snap-web-routes";
     description = "Type safe URLs for Snap";