diff --git a/tox.ini b/tox.ini
index 9c21dac..4d10a0a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -34,6 +34,11 @@
 basepython = python2.7
 commands = sh tools/pretty_flake8.sh
 
+
+[testenv:docs]
+commands = rm -rf doc/build
+           sphinx-build -E -W -b html doc/source doc/build/html
+
 [testenv:bashate]
 deps = bashate
 whitelist_externals = bash