--- a/setup.py	Thu Oct 03 23:17:13 2019 +0100
+++ b/setup.py	Thu Oct 03 23:20:47 2019 +0100
@@ -28,6 +28,9 @@
     'hgext3rd.evolve.thirdparty',
     'hgext3rd.topic',
 ]
+py_packagedir = {
+    'hgext3rd': join(dirname(__file__), 'hgext3rd')
+}
 
 py_versions = '>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*, <4'
 
@@ -44,10 +47,11 @@
     maintainer_email='pierre-yves.david@ens-lyon.org',
     url='https://www.mercurial-scm.org/doc/evolution/',
     description='Flexible evolution of Mercurial history.',
-    long_description=open('README').read(),
+    long_description=open(join(dirname(__file__), 'README')).read(),
     keywords='hg mercurial',
     license='GPLv2+',
     py_modules=py_modules,
     packages=py_packages,
+    package_dir=py_packagedir,
     python_requires=py_versions
 )