diff --git a/tox.ini b/tox.ini
index 791fdc9..3482680 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,6 +8,7 @@ isolated_build = True
 [testenv]
 usedevelop = True
 passenv = PY_COLORS
+setenv = COVERAGE_FILE={envdir}/.coverage
 deps =
   -rtest-requirements.txt
   ansible25: ansible>=2.5,<2.6
@@ -16,4 +17,4 @@ deps =
   ansibledevel: git+https://github.com/ansible/ansible.git
 commands =
     ansible-later --help
-    pytest tests/ --cov={toxinidir}/ansiblelater/ --no-cov-on-fail --cov-append
+    pytest tests/ --cov={toxinidir}/ansiblelater/ --no-cov-on-fail