diff --git a/scapy/automaton.py b/scapy/automaton.py
index 66cf0cf9cffe21f7f00e60eab3fe96c95f3e0975..854cd816a183166c1e22408d0348c8a403b191c2 100644
--- a/scapy/automaton.py
+++ b/scapy/automaton.py
@@ -4,7 +4,7 @@
 ## This program is published under a GPLv2 license
 
 from __future__ import with_statement
-import types,itertools,time,os,sys
+import types,itertools,time,os,sys,socket
 from select import select
 from collections import deque
 import thread