diff --git a/.travis.yml b/.travis.yml
index 0da8c1d..22ca65d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,7 @@ matrix:
   - python: 3.5
     env: TOXENV=py35
 before_install:
-    - pip install tox
-# command to run tests
+    - pip install tox codecov
 script:
     - tox
+    - codecov
diff --git a/README.rst b/README.rst
index adae38d..fde5e4e 100644
--- a/README.rst
+++ b/README.rst
@@ -14,6 +14,10 @@ python-escpos - Python library to manipulate ESC/POS Printers
     :target: https://landscape.io/github/python-escpos/python-escpos/master
     :alt: Code Health
 
+.. image:: https://codecov.io/github/python-escpos/python-escpos/coverage.svg?branch=master
+    :target: https://codecov.io/github/python-escpos/python-escpos?branch=master
+    :alt: Code Coverage
+
 .. image:: https://readthedocs.org/projects/python-escpos/badge/?version=stable
     :target: http://python-escpos.readthedocs.org/en/latest/?badge=stable
     :alt: Documentation Status
diff --git a/tox.ini b/tox.ini
index c7460c5..0cee432 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,5 +4,4 @@ envlist = py27, py34, py35
 [testenv]
 deps = nose
        coverage
-commands = nosetests
-# TODO: implement code coverage analysis (and of course tests at first)
+commands = nosetests --with-coverage --cover-erase --cover-branches