diff --git a/src/python/oftest/controller.py b/src/python/oftest/controller.py
index 5289fdd..acbe3fc 100644
--- a/src/python/oftest/controller.py
+++ b/src/python/oftest/controller.py
@@ -160,10 +160,14 @@
         if self.passive:
             self.logger.info("Create/listen at " + self.host + ":" +
                              str(self.port))
-            self.listen_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            ai = socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC,
+                                    socket.SOCK_STREAM, 0, socket.AI_PASSIVE)
+            # Use first returned addrinfo
+            (family, socktype, proto, name, sockaddr) = ai[0]
+            self.listen_socket = socket.socket(family, socktype)
             self.listen_socket.setsockopt(socket.SOL_SOCKET,
                                           socket.SO_REUSEADDR, 1)
-            self.listen_socket.bind((self.host, self.port))
+            self.listen_socket.bind(sockaddr)
             self.listen_socket.listen(LISTEN_QUEUE_SIZE)
 
     def filter_packet(self, rawmsg, hdr):