diff --git a/setup.py b/setup.py
index 6be65cca..16c700ca 100644
--- a/setup.py
+++ b/setup.py
@@ -1,4 +1,4 @@
-from setuptools import setup
+from setuptools import setup, find_packages
 
 __version__ = '0.4.1'
 project_name = 'pywinrm'
@@ -21,7 +21,7 @@
     author_email='alexey.diyan@gmail.com',
     url='http://github.com/diyan/pywinrm/',
     license='MIT license',
-    packages=('winrm', 'winrm.tests', 'winrm.vendor.requests_kerberos'),
+    packages=find_packages(),
     package_data={'winrm.tests': ['*.ps1']},
     install_requires=['xmltodict', 'requests>=2.9.1', 'requests_ntlm>=0.3.0', 'six'],
     extras_require={