diff --git a/python-cloudpickle.changes b/python-cloudpickle.changes
index c09cb73..ab17537 100644
--- a/python-cloudpickle.changes
+++ b/python-cloudpickle.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Dec  9 14:43:55 UTC 2020 - Benjamin Greiner <code@bnavigator.de>
+
+- Don't pip install testpkg into user sitelib
+  * it masks problems with reused local builds
+  * was only single flavor
+
 -------------------------------------------------------------------
 Wed Dec  2 15:00:54 UTC 2020 - Markéta Machová <mmachova@suse.com>
 
diff --git a/python-cloudpickle.spec b/python-cloudpickle.spec
index c70126d..945c207 100644
--- a/python-cloudpickle.spec
+++ b/python-cloudpickle.spec
@@ -72,8 +72,9 @@ functions and classes defined interactively in the __main__ module.
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
-pip install ./tests/cloudpickle_testpkg
-export PYTHONPATH='.:tests'
+# make local source and testpkg importable
+export PYTHONPATH=':./tests/cloudpickle_testpkg'
+# -s: tests need direct print
 %pytest -s
 
 %files %{python_files}