diff --git a/tox.ini b/tox.ini
index 57681be03..a7e967941 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,6 +23,7 @@ commands =
     {[python-cli-options]byte-errors} \
     {[python-cli-options]max-isolation} \
     {[python-cli-options]warnings-to-errors} \
+    -W 'ignore:Coverage failure::pytest_cov.plugin' \
     -m pytest \
       {tty:--color=yes} \
       {posargs:--cov-report=html:{envtmpdir}{/}htmlcov{/}}