diff --git a/.gitignore b/.gitignore
index 9809289..30ded82 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,5 +4,6 @@ build/
 dist/
 .local
 zaza.egg-info/
+.coverage
 # Sphinx
 doc/build
diff --git a/requirements.txt b/requirements.txt
index df8eb42..9deb54a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,7 @@ PyYAML
 flake8>=2.2.4,<=3.5.0
 flake8-docstrings
 flake8-per-file-ignores
+coverage
 mock>=1.2
 nose>=1.3.7
 pbr>=1.8.0,<1.9.0
diff --git a/tox.ini b/tox.ini
index ab70085..6436461 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,7 +7,7 @@ setenv = VIRTUAL_ENV={envdir}
          PYTHONHASHSEED=0
 install_command =
   pip install {opts} {packages}
-commands = nosetests {posargs} {toxinidir}/unit_tests
+commands = nosetests --with-coverage --cover-package=zaza {posargs} {toxinidir}/unit_tests
 
 [testenv:py3]
 basepython = python3