diff --git a/tox.ini b/tox.ini
index f55d5bb63db75346a549761dcad1be3ac6020141..0a543846c5054ba00d7b41e1226a2232da046279 100644
--- a/tox.ini
+++ b/tox.ini
@@ -24,7 +24,7 @@ usedevelop = False
 envdir = {toxworkdir}/linting
 commands =
     pep8: {envpython} -m flake8 --version
-    pep8: {envpython} -m flake8
+    pep8: {envpython} -m flake8 --extend-exclude './.venv/','./venv/'
     black: {envpython} -m black --version
     black: {envpython} -m black --check --diff .
     pylint: {envpython} -m pylint --version