diff --git a/src/common/socks5.py b/src/common/socks5.py
index 4e02125ca..c7aa99bf9 100644
--- a/src/common/socks5.py
+++ b/src/common/socks5.py
@@ -899,6 +899,9 @@ class Socks5Receiver(Socks5, IdleObject):
 	
 	def connect(self):
 		''' create the socket and plug it to the idlequeue '''
+		if self.ais == None:
+			return None
+
 		for ai in self.ais:
 			try:
 				self._sock=socket.socket(*ai[:3])