diff --git a/tests/pythontest.spec b/tests/pythontest.spec
index 3b707c5..50c136a 100644
--- a/tests/pythontest.spec
+++ b/tests/pythontest.spec
@@ -71,3 +71,8 @@ test $PY -ge $INODES
 %pycached %{python3_sitelib}/directory/file.py
 %pycached %{python36_sitelib}/directory/file.py
 %{python27_sitelib}/directory/file.py*
+
+
+%changelog
+* Thu Jan 01 2015 Fedora Packager <nobody@fedoraproject.org> - 0-0
+- This changelog entry exists and is deliberately set in the past
diff --git a/tests/tests.yml b/tests/tests.yml
index 11bb3ae..ac03d2e 100644
--- a/tests/tests.yml
+++ b/tests/tests.yml
@@ -16,9 +16,12 @@
     - pytest:
         dir: .
         run: PYTHONPATH=/usr/lib/rpm/redhat ALTERNATE_PYTHON_VERSION=3.6 pytest -v
-    - manual_byte_compilation:
+    - manual_byte_compilation_clamp_mtime_off:
         dir: .
-        run: rpmbuild -ba pythontest.spec
+        run: rpmbuild --define 'clamp_mtime_to_source_date_epoch 0' -ba pythontest.spec
+    - manual_byte_compilation_clamp_mtime_on:
+        dir: .
+        run: rpmbuild --define 'clamp_mtime_to_source_date_epoch 1' -ba pythontest.spec
     required_packages:
     - rpm-build
     - python-rpm-macros