diff --git a/Gemfile b/Gemfile
index a268db7929..23b1a1096b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -21,17 +21,12 @@ group :doc do
   gem "RedCloth", "~> 4.2" if RUBY_VERSION < "1.9.3"
 end
 
-group :test do
-  gem "ruby-prof"
-end
-
 # AS
 gem "memcache-client", ">= 1.8.5"
 
 platforms :mri_18 do
   gem "system_timer"
   gem "ruby-debug", ">= 0.10.3"
-  gem 'ruby-prof'
   gem "json"
 end
 
@@ -48,6 +43,9 @@ platforms :ruby do
   gem 'yajl-ruby'
   gem "nokogiri", ">= 1.4.4"
 
+  group :test do
+    gem 'ruby-prof'
+  end
   # AR
   gem "sqlite3", "~> 1.3.3"