1 files changed, 6 insertions, 3 deletions
diff --git a/Gemfile b/Gemfile
index e8628d7eee..5184f4d8d9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -12,9 +12,12 @@ gem "rack", :git => "git://github.com/rack/rack.git"
 
 gem "rake",  ">= 0.8.7"
 gem "mocha", ">= 0.9.8"
-gem "rdoc",  "~> 3.4"
-gem "horo",  "= 1.0.3"
-gem "RedCloth", "~> 4.2"
+
+group :doc do
+  gem "rdoc",  "~> 3.4"
+  gem "horo",  "= 1.0.3"
+  gem "RedCloth", "~> 4.2"
+end
 
 # for perf tests
 gem "faker"