diff --git a/Library/Homebrew/formula_creator.rb b/Library/Homebrew/formula_creator.rb
index a289121b27..3369cb4d7b 100644
--- a/Library/Homebrew/formula_creator.rb
+++ b/Library/Homebrew/formula_creator.rb
@@ -202,11 +202,14 @@ module Homebrew
         <% elsif @mode == :ruby %>
             ENV["GEM_HOME"] = libexec
 
+            # Additional dependency from gem
             # resources.each do |r|
             #   system "gem", "install", r.cached_download, "--ignore-dependencies",
             #      "--no-document", "--install-dir", libexec
             # end
 
+            system "bundle", "config", "set", "without", "development", "test"
+            system "bundle", "install"
             system "gem", "build", "\#{name}.gemspec"
             system "gem", "install", "\#{name}-\#{version}.gem"
             bin.install libexec/"bin/\#{name}"