diff --git a/.gitignore b/.gitignore
index 8139c6d..d6ae633 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,7 +21,9 @@ lib64
 pip-log.txt
 
 # Unit test / coverage reports
-.coverage
+cover/
+.coverage*
+!.coveragerc
 .tox
 nosetests.xml
 .testrepository
diff --git a/tox.ini b/tox.ini
index c436cdb..931250f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -22,7 +22,7 @@ commands = flake8
 commands = {posargs}
 
 [testenv:cover]
-commands = python setup.py testr --coverage --testr-args='{posargs}'
+commands = python setup.py testr --coverage --coverage-package-name='os_testr' --testr-args='{posargs}'
 
 [testenv:docs]
 commands = python setup.py build_sphinx