diff --git a/src/network/asyncore_pollchoose.py b/src/network/asyncore_pollchoose.py
index 39576849..ae18e95e 100644
--- a/src/network/asyncore_pollchoose.py
+++ b/src/network/asyncore_pollchoose.py
@@ -57,7 +57,7 @@ import warnings
 import os
 from errno import EALREADY, EINPROGRESS, EWOULDBLOCK, ECONNRESET, EINVAL, \
      ENOTCONN, ESHUTDOWN, EISCONN, EBADF, ECONNABORTED, EPIPE, EAGAIN, \
-     ECONNREFUSED, EHOSTUNREACH, \
+     ECONNREFUSED, EHOSTUNREACH, ENOTSOCK, \
      errorcode
 try:
     from errno import WSAEWOULDBLOCK