1 files changed, 1 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index a644908..63dd3bd 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,5 +31,6 @@ deps = flake8
 commands = flake8 stdnum tests update setup.py
 
 [testenv:docs]
+use_develop = true
 deps = Sphinx
 commands = sphinx-build -N -b html docs {envtmpdir}/sphinx -W