diff --git a/setup.py b/setup.py
index 3dd31790..6be65cca 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup
 
-__version__ = '0.4.1beta1'
+__version__ = '0.4.1'
 project_name = 'pywinrm'
 
 # PyPi supports only reStructuredText, so pandoc should be installed
@@ -21,7 +21,7 @@
     author_email='alexey.diyan@gmail.com',
     url='http://github.com/diyan/pywinrm/',
     license='MIT license',
-    packages=('winrm',),
+    packages=('winrm', 'winrm.tests', 'winrm.vendor.requests_kerberos'),
     package_data={'winrm.tests': ['*.ps1']},
     install_requires=['xmltodict', 'requests>=2.9.1', 'requests_ntlm>=0.3.0', 'six'],
     extras_require={
diff --git a/winrm/transport.py b/winrm/transport.py
index 74da8f2f..054b6154 100644
--- a/winrm/transport.py
+++ b/winrm/transport.py
@@ -23,7 +23,7 @@
 
 HAVE_KERBEROS = False
 try:
-    from .vendor.requests_kerberos import HTTPKerberosAuth, REQUIRED
+    from winrm.vendor.requests_kerberos import HTTPKerberosAuth, REQUIRED
 
     HAVE_KERBEROS = True
 except ImportError: