diff --git a/fix_entry_point.patch b/fix_entry_point.patch
new file mode 100644
index 0000000..1ac3df8
--- /dev/null
+++ b/fix_entry_point.patch
@@ -0,0 +1,19 @@
+--- a/screenplain/main.py
++++ b/screenplain/main.py
+@@ -30,7 +30,7 @@ def invalid_format(parser, message):
+     )
+ 
+ 
+-def main(args):
++def main(args=sys.argv[1:]):
+     parser = OptionParser(usage=usage)
+     parser.add_option(
+         '-f', '--format', dest='output_format',
+--- a/setup.cfg
++++ b/setup.cfg
+@@ -1,2 +1,5 @@
+ [metadata]
+ license_files = LICENSE.txt
++
++[pycodestyle]
++ignore = E402,W504
diff --git a/python-screenplain.changes b/python-screenplain.changes
index 7245e00..5449b04 100644
--- a/python-screenplain.changes
+++ b/python-screenplain.changes
@@ -4,6 +4,8 @@ Thu Dec 03 21:34:14 UTC 2020 - mcepl@cepl.eu
 - Update to version 0.9.0+git.1597423678.4e34d1f:
   * Don't use open, but more compatible io.open
 - Remove py2.patch, which has been included upstream.
+- Add fix_entry_point.patch
+- We don't need any stinking pytest.
 
 -------------------------------------------------------------------
 Fri Aug 14 16:29:32 UTC 2020 - mcepl@cepl.eu
diff --git a/python-screenplain.spec b/python-screenplain.spec
index 843b625..287e8ac 100644
--- a/python-screenplain.spec
+++ b/python-screenplain.spec
@@ -32,8 +32,10 @@ URL:            http://www.screenplain.com/
 # Source:         https://files.pythonhosted.org/packages/source/s/screenplain/screenplain-%%{version}.tar.gz
 # Tarball generated from gh#vilcans/screenplain#62
 Source:         screenplain-%{version}.tar.gz
+# PATCH-FIX-UPSTREAM fix_entry_point.patch mcepl@suse.com
+# entry point lead to incorrect function.
+Patch0:         fix_entry_point.patch
 BuildRequires:  %{python_module pycodestyle}
-BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module reportlab}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
@@ -76,9 +78,9 @@ sed -i '1{/^#!.*env python/d}' screenplain/main.py
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
-export PYTEST_ADDOPTS="--doctest-modules"
-%pytest
-python3 -mpycodestyle -v --ignore=E402,W504 screenplain tests
+%pyunittest discover -v -p '*test*.py'
+%python_exec -mdoctest -v screenplain/*.py
+%python_exec -mpycodestyle -v screenplain tests
 
 %post
 %python_install_alternative screenplain