diff --git a/python-tempora.changes b/python-tempora.changes
index e516a05..08dc6b8 100644
--- a/python-tempora.changes
+++ b/python-tempora.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Jan 11 12:25:33 UTC 2018 - tchvatal@suse.com
+
+- Fix building with python3 only available
+
 -------------------------------------------------------------------
 Fri Mar 31 13:43:53 UTC 2017 - jmatejek@suse.com
 
diff --git a/python-tempora.spec b/python-tempora.spec
index 905db9f..a6107c7 100644
--- a/python-tempora.spec
+++ b/python-tempora.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package python-tempora
 #
-# Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,6 +17,7 @@
 
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
+%bcond_without python2
 Name:           python-tempora
 Version:        1.6.1
 Release:        0
@@ -33,11 +34,12 @@ BuildRequires:  %{python_module setuptools}
 BuildRequires:  %{python_module six}
 BuildRequires:  fdupes
 BuildRequires:  python-rpm-macros
-BuildRequires:  python2-backports.unittest_mock
 Requires:       python-pytz
 Requires:       python-six
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildArch:      noarch
+%if %{with python2}
+BuildRequires:  python2-backports.unittest_mock
+%endif
 %python_subpackages
 
 %description
@@ -62,7 +64,6 @@ Modules include:
 %python_exec -m pytest tests
 
 %files %{python_files}
-%defattr(-,root,root,-)
 %doc CHANGES.rst README.rst docs/*rst
 %python3_only %{_bindir}/calc-prorate
 %{python_sitelib}/*