diff --git a/tox.ini b/tox.ini
index a47b95a..fdc4fe7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -89,6 +89,6 @@ application-import-names = metalsmith
 # [H203] Use assertIs(Not)None to check for None.
 # [H204] Use assert(Not)Equal to check for equality.
 # [H205] Use assert(Greater|Less)(Equal) for comparison.
-# [H210] Require ‘autospec’, ‘spec’, or ‘spec_set’ in mock.patch/mock.patch.object calls
+# [H210] Require 'autospec', 'spec', or 'spec_set' in mock.patch/mock.patch.object calls
 # [H904] Delay string interpolations at logging calls.
 enable-extensions=H106,H203,H204,H205,H210,H904