diff -r a599e23c5712 -r 2efe0bf90ebb cubicweb/devtools/devctl.py
--- a/cubicweb/devtools/devctl.py	Wed Oct 05 16:16:33 2016 +0200
+++ b/cubicweb/devtools/devctl.py	Mon Oct 10 14:34:41 2016 +0200
@@ -55,6 +55,7 @@
 STD_BLACKLIST = set(STD_BLACKLIST)
 STD_BLACKLIST.add('.tox')
 STD_BLACKLIST.add('test')
+STD_BLACKLIST.add('node_modules')
 
 
 class DevConfiguration(ServerConfiguration, WebConfiguration):