diff --git a/setup.rb b/setup.rb
index b1ab6f7..f212530 100644
--- a/setup.rb
+++ b/setup.rb
@@ -1,7 +1,10 @@
 #/usr/bin/ruby -w 
-
-puts "Gems Instalation "
-system("gem install colorize && gem install nokogiri")
+puts "If you can install this script should be root."
+system("sudo -s")
+puts "Gems Instalation"
+system("sudo apt-get install build-essential patch ruby-dev zlib1g-dev liblzma-dev")
+system("gem install nokogiri")
+system("gem install colorize")
 puts "Tools Instalation"
-system("sudo apt-get install nmap && sudo apt-get install whatweb && sudo apt-get install host && sudo apt-get install -y dnsutils
- && sudo apt-get install wafw00f")
+system("sudo apt-get install nmap && sudo apt-get install whatweb && sudo apt-get install host")
+system("sudo apt-get install -y dnsutils && sudo apt-get install wafw00f")