diff --git a/tox.ini b/tox.ini
index b91332d..c6bb233 100644
--- a/tox.ini
+++ b/tox.ini
@@ -59,7 +59,7 @@ commands = sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasen
 
 [flake8]
 show-source = True
-exclude = .git,.tox,dist,doc,*lib/python*,*egg,build,tools
+exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,tools
 # If 'ignore' is not set there are default errors and warnings that are set
 # Doc: http://flake8.readthedocs.org/en/latest/config.html#default
 ignore = W504