diff --git a/pkgs/development/libraries/haskell/xournal-parser/default.nix b/pkgs/development/libraries/haskell/xournal-parser/default.nix
index 7b32b5b587f2..d874543a967a 100644
--- a/pkgs/development/libraries/haskell/xournal-parser/default.nix
+++ b/pkgs/development/libraries/haskell/xournal-parser/default.nix
@@ -1,11 +1,17 @@
-{ cabal, attoparsec, attoparsecConduit, conduit, lens, mtl, strict, text, transformers, xmlConduit, xmlTypes, xournalTypes, zlibConduit }:
+{ cabal, attoparsec, attoparsecConduit, conduit, lens, mtl, strict
+, text, transformers, xmlConduit, xmlTypes, xournalTypes
+, zlibConduit
+}:
 
 cabal.mkDerivation (self: {
   pname = "xournal-parser";
   version = "0.5.0.2";
   sha256 = "1s9z7s6mcsn4s2krrcb1x63ca1d0rpyzdhb147w9524qw7gvbjin";
-  buildDepends = [ attoparsec attoparsecConduit conduit lens mtl strict text transformers xmlConduit xmlTypes xournalTypes zlibConduit ];
-  #jailbreak = true;
+  buildDepends = [
+    attoparsec attoparsecConduit conduit lens mtl strict text
+    transformers xmlConduit xmlTypes xournalTypes zlibConduit
+  ];
+  jailbreak = true;
   meta = {
     homepage = "http://ianwookim.org/hoodle";
     description = "Xournal file parser";