diff --git a/setup.py b/setup.py
index 42e154f..4894f7f 100644
--- a/setup.py
+++ b/setup.py
@@ -1,41 +1,42 @@
 #!/usr/bin/env python3
 
 import os
 
 from setuptools import setup, find_packages
 
 
 def parse_requirements(name=None):
     if name:
         reqf = 'requirements-%s.txt' % name
     else:
         reqf = 'requirements.txt'
 
     requirements = []
     if not os.path.exists(reqf):
         return requirements
 
     with open(reqf) as f:
         for line in f.readlines():
             line = line.strip()
             if not line or line.startswith('#'):
                 continue
             requirements.append(line)
     return requirements
 
 
 setup(
     name='swh.lister',
     description='Software Heritage GitHub lister',
     author='Software Heritage developers',
     author_email='swh-devel@inria.fr',
     url='https://forge.softwareheritage.org/diffusion/DLSGH/',
     packages=find_packages(),
     scripts=['bin/ghlister'],
     install_requires=parse_requirements() + parse_requirements('swh'),
     test_requires=parse_requirements('test'),
     test_suite='nose.collector',
     setup_requires=['vcversioner'],
+    extras_require={'testing': parse_requirements('test')},
     vcversioner={'version_module_paths': ['swh/lister/_version.py']},
     include_package_data=True,
 )