diff --git a/Gemfile b/Gemfile
index 96fc0dfc8..16b8678b0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -26,6 +26,7 @@ gem "parseconfig"
 gem "erubis"
 gem "dm-migrations"
 gem "msfrpc-client"
+gem "rubydns"
 
 # notifications
 gem "twitter"
diff --git a/core/loader.rb b/core/loader.rb
index 502a664e5..01e284326 100644
--- a/core/loader.rb
+++ b/core/loader.rb
@@ -15,6 +15,7 @@ require 'ipaddr'
 require 'base64'
 require 'xmlrpc/client'
 require 'openssl'
+require 'rubydns'
 
 # @note Include the filters
 require 'core/filters'
@@ -29,4 +30,4 @@ require 'core/api'
 require 'core/settings'
 
 # @note Include the core of BeEF
-require 'core/core'
\ No newline at end of file
+require 'core/core'