diff --git a/setup.cfg b/setup.cfg
index c283992b..6e82886a 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,7 @@
 [tool:pytest]
 python_files = testsuite/*.py
+markers =
+    allow_cache_wipe
 
 [flake8]
 # please note that the values are adjusted so that they do not cause failures