diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.0.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.0.x.nix
index 5c7348678b7e..e0629457d9e6 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.0.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.0.x.nix
@@ -60,4 +60,7 @@ self: super: {
     sha256 = "026vv2k3ks73jngwifszv8l59clg88pcdr4mz0wr0gamivkfa1zy";
   });
 
+  # https://github.com/nkaretnikov/titlecase/issues/6
+  titlecase = doJailbreak super.titlecase;
+
 }