diff --git a/src/common/proxy65_manager.py b/src/common/proxy65_manager.py
index 5f2a9f528edcb5a17a0e8ea021d095de1f0b3689..5145632db5eacc9bedd7b586b6fda5ec9ccff9f6 100644
--- a/src/common/proxy65_manager.py
+++ b/src/common/proxy65_manager.py
@@ -186,6 +186,9 @@ class HostTester(Socks5, IdleObject):
 	
 	def connect(self):
 		''' create the socket and plug it to the idlequeue '''
+		if self.host is None:
+			self.on_failure()
+			return None
 		self._sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 		self._sock.setblocking(False)
 		self.fd = self._sock.fileno()
diff --git a/src/common/socks5.py b/src/common/socks5.py
index 9039dab5473517671991ef78da4cd394e7275d05..6e472e1b8174500a375ed67ff207d75bea815e11 100644
--- a/src/common/socks5.py
+++ b/src/common/socks5.py
@@ -350,7 +350,10 @@ class SocksQueue:
 class Socks5:
 	def __init__(self, idlequeue, host, port, initiator, target, sid):
 		if host is not None:
-			self.host = socket.gethostbyname(host)
+			try:
+				self.host = socket.gethostbyname(host)
+			except socket.gaierror:
+				self.host = None
 		self.idlequeue = idlequeue
 		self.fd = -1
 		self.port = port