diff --git a/python-hypothesis.changes b/python-hypothesis.changes
index 1d3cf97..7aceef2 100644
--- a/python-hypothesis.changes
+++ b/python-hypothesis.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Wed Sep  5 10:02:37 UTC 2018 - Matěj Cepl <mcepl@suse.com>
+
+- Precompile Python files to avoid troubles with mtime and magic values.
+
+-------------------------------------------------------------------
+Tue Sep  4 16:01:22 UTC 2018 - Matěj Cepl <mcepl@suse.com>
+
+- Clean up SPEC
+- Add %check section, but make it disabled per default (circular
+  dependency on pytest)
+
 -------------------------------------------------------------------
 Fri Aug 31 11:55:29 UTC 2018 - Tomáš Chvátal <tchvatal@suse.com>
 
diff --git a/python-hypothesis.spec b/python-hypothesis.spec
index 9485586..7758470 100644
--- a/python-hypothesis.spec
+++ b/python-hypothesis.spec
@@ -23,6 +23,9 @@
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 %define oldpython python
 %bcond_without python2
+# Unfortunately we cannot test by default, because of the circular
+# dependency on pytest
+%bcond_with test
 Name:           python-hypothesis
 Version:        3.66.6
 Release:        0
@@ -43,12 +46,14 @@ Recommends:     python-pandas
 Recommends:     python-pytest >= 2.8.0
 Recommends:     python-pytz
 BuildArch:      noarch
+%if %{with test}
 # SECTION test requirements
 BuildRequires:  %{python_module attrs >= 16.0.0}
 BuildRequires:  %{python_module coverage}
 BuildRequires:  %{python_module flaky}
 BuildRequires:  %{python_module mock}
 BuildRequires:  %{python_module pytest >= 2.8.0}
+%endif
 # /SECTION
 %if %{with python2}
 BuildRequires:  python-enum34
@@ -78,7 +83,18 @@ work on Jython or on Python 3.0 through 3.2.
 
 %install
 %python_install
-%python_expand %fdupes %{buildroot}%{$python_sitelib}
+%{python_expand \
+$python -m compileall -d %{$python_sitelib} %{buildroot}%{$python_sitelib}/hypothesis/
+$python -O -m compileall -d %{$python_sitelib} %{buildroot}%{$python_sitelib}/hypothesis/
+%fdupes %{buildroot}%{$python_sitelib}
+}
+
+%if %{with test}
+%check
+%{python_expand export PYTHONPATH=%{buildroot}%{$python_sitelib}
+py.test-%{$python_bin_suffix} test
+}
+%endif
 
 %files %{python_files}
 %doc ../CITATION README.rst