diff --git a/tox.ini b/tox.ini
index 6b4a05ed..1bb20cbb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,7 +26,7 @@ deps =
 [testenv:docs]
 deps = -r{toxinidir}/docs/requirements.txt
 changedir = docs
-commands = sphinx-build -b html -d {envtmpdir}/doctrees . {envtmpdir}/html
+commands = python -m sphinx -b html -d {envtmpdir}/doctrees . {envtmpdir}/html
 
 [testenv:flake8]
 deps =
@@ -38,4 +38,4 @@ commands = flake8 --show-source --statistics mopidy tests
 [testenv:linkcheck]
 deps = -r{toxinidir}/docs/requirements.txt
 changedir = docs
-commands = sphinx-build -b linkcheck -d {envtmpdir}/doctrees . {envtmpdir}/html
+commands = python -m sphinx -b linkcheck -d {envtmpdir}/doctrees . {envtmpdir}/html