diff --git a/pkgs/development/libraries/haskell/hakyll/default.nix b/pkgs/development/libraries/haskell/hakyll/default.nix
index ba174c393677..a594ce878803 100644
--- a/pkgs/development/libraries/haskell/hakyll/default.nix
+++ b/pkgs/development/libraries/haskell/hakyll/default.nix
@@ -26,7 +26,9 @@ cabal.mkDerivation (self: {
     testFrameworkHunit testFrameworkQuickcheck2 text time
   ];
   doCheck = false;
-  jailbreak = true;
+  patchPhase = ''
+    sed -i -e 's|cryptohash.*,|cryptohash,|' hakyll.cabal
+  '';
   meta = {
     homepage = "http://jaspervdj.be/hakyll";
     description = "A static website compiler library";