diff --git a/paste/httpserver.py b/paste/httpserver.py
index 0cfe6c2..8272a9b 100755
--- a/paste/httpserver.py
+++ b/paste/httpserver.py
@@ -353,7 +353,7 @@ class _ConnFixer(object):
         def __init__(self, conn):
             self.__conn = conn
         def makefile(self, mode, bufsize):
-            return socket._fileobject(self.__conn, mode, bufsize)
+            return socket.SocketIO(self.__conn, mode)
         def __getattr__(self, attrib):
             return getattr(self.__conn, attrib)