diff --git a/tox.ini b/tox.ini
index 16bf78a..c3b6d2e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,3 +7,11 @@ commands =
 	python setup.py checkdocs
 usedevelop = True
 extras = testing
+
+[testenv:build-docs]
+extras =
+    docs
+    testing
+changedir = docs
+commands =
+    python -m sphinx . {toxinidir}/build/html