diff --git a/tox.ini b/tox.ini
index 647bb08b7..5829b440a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -67,7 +67,7 @@ ignore = E129
 exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,tools,imagebuild/tinyipa/tinyipafinal,imagebuild/tinyipa/tinyipabuild
 import-order-style = pep8
 application-import-names = ironic_python_agent
-# [H106] Don’t put vim configuration in source files.
+# [H106] Don't put vim configuration in source files.
 # [H203] Use assertIs(Not)None to check for None.
 # [H904] Delay string interpolations at logging calls.
 enable-extensions=H106,H203,H904