diff --git a/lib/ghost/linux-host.rb b/lib/ghost/linux-host.rb
index 2de21ab..06d280b 100644
--- a/lib/ghost/linux-host.rb
+++ b/lib/ghost/linux-host.rb
@@ -1,3 +1,5 @@
+require 'socket'
+
 class Host
   attr_reader :host, :ip