diff --git a/tox.ini b/tox.ini
index edbcd0ad9..bb0c1acb2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -65,7 +65,7 @@ commands =
 [flake8]
 show-source = true
 builtins = _
-exclude=build,.git,.tox,dist,doc,*lib/python*,*egg,tools,horizon,settings.py,*/local/*,functional_tests
+exclude=build,.git,.tox,dist,doc,*lib/python*,*egg,tools,horizon,settings.py,*/local/*,functional_tests,node_modules
 
 [testenv:lower-constraints]
 basepython = python3