diff --git a/.travis.yml b/.travis.yml
index 9428e48..1c731b1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,11 +2,15 @@ language: python
 python:
 - 2.7
 - 3.4
+- 3.5
 before_install:
+- pip install nose coverage codecov
 - pip install -r requires/testing.txt
 install:
 - pip install -e .
-script: nosetests
+script: nosetests --with-coverage
+after_success:
+- codecov
 sudo: false
 deploy:
   distributions: sdist bdist_wheel
diff --git a/docs/conf.py b/docs/conf.py
index 7c88dd7..ed978d6 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -32,6 +32,7 @@ html_theme_options = {
     'description': 'Tornado application runner',
     'github_banner': True,
     'travis_button': True,
+    'codecov_button': True,
 }
 
 intersphinx_mapping = {