diff --git a/tox.ini b/tox.ini
index 8907118bc..3765b3195 100644
--- a/tox.ini
+++ b/tox.ini
@@ -46,6 +46,7 @@ deps =
   -r{toxinidir}/linters-requirements.txt
 
 commands =
+  bash -c "for f in $(find . -path './roles/*/library/*.py' | xargs); do echo Checking shebang on $f; if head -1 $f | grep -q '^#!'; then echo $f 'starts with #!, it should not as Ansible will choose the interpreter'; exit 1; fi; done"
   flake8 {posargs}
   yamllint -s -f parsable .
   python -m ansiblelint --version