diff --git a/README b/README
index bd6a275c..72a07e25 100644
--- a/README
+++ b/README
@@ -34,13 +34,13 @@ WPScan comes pre-installed on BackTrack5 R1 in the /pentest/web/wpscan directory
 
   -> Installing on Backtrack5 Gnome/KDE 32bit :
 
-    sudo apt-get install libcurl4-gnutls-dev
+    sudo apt-get install libcurl4-gnutls-dev libxml2 libxml2-dev libxslt1-dev
     sudo gem install --user-install mime-types typhoeus nokogiri json
 
 
   -> Installing on Debian/Ubuntu :
 
-    sudo apt-get install libcurl4-gnutls-dev libopenssl-ruby
+    sudo apt-get install libcurl4-gnutls-dev libopenssl-ruby libxml2 libxml2-dev libxslt1-dev
     sudo gem install typhoeus nokogiri json
 
 
diff --git a/README.md b/README.md
index 4973cbc9..e344ce78 100644
--- a/README.md
+++ b/README.md
@@ -33,7 +33,7 @@ WPScan only supports Ruby => 1.9.
 
 *Installing on Debian/Ubuntu:*
 
-```sudo apt-get install libcurl4-gnutls-dev libopenssl-ruby```
+```sudo apt-get install libcurl4-gnutls-dev libopenssl-ruby libxml2 libxml2-dev libxslt1-dev```
 
 ``` sudo gem install typhoeus nokogiri json```
 
diff --git a/lib/environment.rb b/lib/environment.rb
index b628b8dd..69e4aa82 100644
--- a/lib/environment.rb
+++ b/lib/environment.rb
@@ -42,6 +42,11 @@ rescue LoadError => e
 
   missing_gem = e.to_s[%r{ -- ([^\s]+)}, 1]
   if missing_gem
+    if missing_gem =~ /nokogiri/i
+      puts
+      puts "Nokogiri needs some packets, please run 'sudo apt-get install libxml2 libxml2-dev libxslt1-dev' to install them. Then run the command below"
+      puts
+    end
     puts "[TIP] Try to run 'gem install #{missing_gem}' or 'gem install --user-install #{missing_gem}'. If you still get an error, Please see README file or https://github.com/wpscanteam/wpscan"
   end
   exit(1)