diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index ba98e7c0deb..3bb2992620e 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -23,8 +23,7 @@ self: super: {
   text = dontCheck super.text;
 
   # https://github.com/bartavelle/hruby/issues/10
-  # https://github.com/bartavelle/hruby/issues/9
-  hruby = addExtraLibrary (dontCheck super.hruby) pkgs.ruby_2_1;
+  hruby = addExtraLibrary super.hruby pkgs.ruby_2_1;
 
   # Doesn't compile with lua 5.2.
   hslua = super.hslua.override { lua = pkgs.lua5_1; };