diff --git a/tox.ini b/tox.ini
index f050519..8e94c01 100644
--- a/tox.ini
+++ b/tox.ini
@@ -84,7 +84,7 @@ deps = {[testenv]basedeps}
 basepython = {[coverbase]basepython}
 commands =
     {[coverbase]commands}
-    coverage report --show-missing --fail-under 80
+    coverage report --show-missing --cover-min-percentage=100
 deps =
     {[coverbase]deps}