diff --git a/tox.ini b/tox.ini
index c1e4b706e..2c603469c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -13,6 +13,7 @@ deps =
     flask
     coverage
     responses
+    sphinx
 commands =
     nosetests --with-coverage
 
@@ -23,10 +24,11 @@ deps =
 
 [testenv:docs]
 changedir = docs
-deps = sphinx
 commands =
     sphinx-build -W -b html . {envtmpdir}/html
 
 [testenv:flake8]
-deps = flake8
+deps =
+    {[testenv]deps}
+    flake8
 commands = flake8 beets beetsplug beet test setup.py docs