diff --git a/pkgs/development/interpreters/ruby/gems.nix b/pkgs/development/interpreters/ruby/gems.nix
index 3acf0cc6503..7b9122080b5 100644
--- a/pkgs/development/interpreters/ruby/gems.nix
+++ b/pkgs/development/interpreters/ruby/gems.nix
@@ -13,7 +13,7 @@
 { ruby, callPackage, pkgs }:
 
 let
-  buildRubyGem = callPackage ./gem.nix {};
+  buildRubyGem = callPackage ./gem.nix { inherit ruby; };
   lib = ruby.stdenv.lib;
 self = rec {
   inherit buildRubyGem;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7da37f7226d..90ce4bf6555 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4045,14 +4045,19 @@ let
   ruby_2_0 = ruby_2_0_0;
   ruby_2_1 = ruby_2_1_3;
 
-  rubyLibsWith = ruby: callPackage ../development/interpreters/ruby/gems.nix {
-    inherit ruby;
+  rubyLibsWith = myruby: callPackage ../development/interpreters/ruby/gems.nix {
+    ruby = myruby;
   };
 
-  ruby18Libs = rubyLibsWith ruby18;
-  ruby19Libs = rubyLibsWith ruby19;
-  ruby2Libs = rubyLibsWith ruby2;
-  rubyLibs = recurseIntoAttrs ruby19Libs;
+  rubyLibs_1_8_7 = rubyLibsWith ruby_1_8_7;
+  rubyLibs_1_9_3 = rubyLibsWith ruby_1_9_3;
+  rubyLibs_2_0_0 = rubyLibsWith ruby_2_0_0;
+  rubyLibs_2_1_0 = rubyLibsWith ruby_2_1_0;
+  rubyLibs_2_1_1 = rubyLibsWith ruby_2_1_1;
+  rubyLibs_2_1_2 = rubyLibsWith ruby_2_1_2;
+  rubyLibs_2_1_3 = rubyLibsWith ruby_2_1_3;
+
+  rubyLibs = recurseIntoAttrs rubyLibs_1_9_3;
 
   rake = rubyLibs.rake;