diff --git a/socks.py b/socks.py
index 83b1435..bce0c4f 100644
--- a/socks.py
+++ b/socks.py
@@ -343,7 +343,7 @@ def bind(self, *pos, **kw):
         # some relays drop packets if a port of zero is specified.
         # Avoid specifying host address in case of NAT though.
         _, port = self.getsockname()
-        dst = ("0", port)
+        dst = ("0.0.0.0", port)
 
         self._proxyconn = _orig_socket()
         proxy = self._proxy_addr()
@@ -818,7 +818,7 @@ def connect(self, dest_pair, catch_errors=None):
                 # Protocol error while negotiating with proxy
                 self.close()
                 raise
-                
+
     @set_self_blocking
     def connect_ex(self, dest_pair):
         """ https://docs.python.org/3/library/socket.html#socket.socket.connect_ex
@@ -828,7 +828,7 @@ def connect_ex(self, dest_pair):
             self.connect(dest_pair, catch_errors=True)
             return 0
         except OSError as e:
-            # If the error is numeric (socket errors are numeric), then return number as 
+            # If the error is numeric (socket errors are numeric), then return number as
             # connect_ex expects. Otherwise raise the error again (socket timeout for example)
             if e.errno:
                 return e.errno