diff --git a/tox.ini b/tox.ini
index 7e5b182f6..1f8d10451 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,7 +20,7 @@ envlist =
 commands =
     {env:_PYTEST_TOX_COVERAGE_RUN:} pytest {posargs:{env:_PYTEST_TOX_DEFAULT_POSARGS:}}
     coverage: coverage combine
-    coverage: coverage report
+    coverage: coverage report -m
 passenv = USER USERNAME COVERAGE_* TRAVIS PYTEST_ADDOPTS
 setenv =
     _PYTEST_TOX_DEFAULT_POSARGS={env:_PYTEST_TOX_POSARGS_LSOF:} {env:_PYTEST_TOX_POSARGS_PEXPECT:} {env:_PYTEST_TOX_POSARGS_TWISTED:} {env:_PYTEST_TOX_POSARGS_XDIST:}