diff --git a/qa/rpc-tests/p2p_txexpiry_dos.py b/qa/rpc-tests/p2p_txexpiry_dos.py
index 633f00284..0fe5bf698 100755
--- a/qa/rpc-tests/p2p_txexpiry_dos.py
+++ b/qa/rpc-tests/p2p_txexpiry_dos.py
@@ -1,10 +1,8 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2018 The Zcash developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or https://www.opensource.org/licenses/mit-license.php .
 
-import sys; assert sys.version_info < (3,), ur"This script does not run under Python 3. Please use Python 2.7.x."
-
 from test_framework.mininode import NodeConn, NetworkThread, \
     msg_tx, SAPLING_PROTO_VERSION
 from test_framework.test_framework import BitcoinTestFramework
@@ -18,7 +16,7 @@ import time
 class TxExpiryDoSTest(BitcoinTestFramework):
 
     def setup_chain(self):
-        print "Initializing test directory " + self.options.tmpdir
+        print("Initializing test directory " + self.options.tmpdir)
         initialize_chain_clean(self.options.tmpdir, 1)
 
     def setup_network(self):