diff --git a/.coveragerc b/.coveragerc
index a794af4..de79a60 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -4,4 +4,4 @@ source = oslo_privsep
 omit = oslo_privsep/tests/*
 
 [report]
-ignore-errors = True
+ignore_errors = True
diff --git a/tox.ini b/tox.ini
index 6cd9266..a1cd294 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,13 +33,17 @@ commands =
   sphinx-build -W --keep-going -b html doc/source doc/build/html
 
 [testenv:cover]
+deps = {[testenv]deps}
+    coverage
 setenv =
-    PYTHON=coverage run --source $project --parallel-mode
+    PYTHON=coverage run --source oslo_privsep --parallel-mode
 commands =
+    coverage erase
     stestr run {posargs}
     coverage combine
     coverage html -d cover
     coverage xml -o cover/coverage.xml
+    coverage report --show-missing
 
 [flake8]
 # E123, E125 skipped as they are invalid PEP-8.