diff --git a/tox.ini b/tox.ini
index 97c490ecc..da517db61 100644
--- a/tox.ini
+++ b/tox.ini
@@ -12,6 +12,7 @@ deps = -r{toxinidir}/requirements.txt
 commands =
     oslo-config-generator --config-file etc/oslo-config-generator/barbican.conf --output-file etc/barbican/barbican.conf
     /usr/bin/find . -type f -name "*.py[c|o]" -delete
+    rm -f .testrepository/times.dbm
     coverage erase
     python setup.py testr --coverage --testr-args='{posargs}'
     coverage report -m