diff --git a/bin/test/runtests.py b/bin/test/runtests.py
index 158bc41cd..53852f0e8 100755
--- a/bin/test/runtests.py
+++ b/bin/test/runtests.py
@@ -1,69 +1,69 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 #
 # Copyright (c) 2012 by Intevation GmbH
 # All rights reserved.
 #
 # Authors:
 # Andre Heinecke <aheinecke@intevation.de>
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above copyright
 #       notice, this list of conditions and the following disclaimer in the
 #       documentation and/or other materials provided with the distribution.
 #     * Neither the name of Intevation GmbH nor the
 #       names of its contributors may be used to endorse or promote products
 #       derived from this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 # DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 """
 Main entry point for the emerge test suite.
 
 Just run this file as a python script to execute all tests
 """
 
 import os
 import sys
 import unittest
 import optparse
 
 
 def main():
     """Run all the tests in the emerge test suite"""
 
     parser = optparse.OptionParser()
     parser.set_defaults(verbosity=1)
     parser.add_option("-v", "--verbose", action="store_const", const=3,
                       dest="verbosity")
     opts, rest = parser.parse_args()
 
     os.environ["EMERGE_VERBOSE"] = str(opts.verbosity)
 
     files = os.listdir(os.curdir)
     names = []
     for file in files:
         if file[:4] == "test" and file[-3:] == ".py":
             names.append(file[:-3])
 
     suite = unittest.defaultTestLoader.loadTestsFromNames(names)
     runner = unittest.TextTestRunner(verbosity = opts.verbosity)
     result = runner.run(suite)
 
     sys.exit(not result.wasSuccessful())
 
 
 if __name__ == "__main__":
     main()