diff --git a/@commitlint/types/src/rules.ts b/@commitlint/types/src/rules.ts
index efc69d0cc6..c6cc0bd0ff 100644
--- a/@commitlint/types/src/rules.ts
+++ b/@commitlint/types/src/rules.ts
@@ -114,7 +114,7 @@ export type RulesConfig<V = RuleConfigQuality.User> = {
 	'signed-off-by': RuleConfig<V>;
 	'subject-case': CaseRuleConfig<V>;
 	'subject-empty': RuleConfig<V>;
-	'subject-full-stop': RuleConfig<V>;
+	'subject-full-stop': RuleConfig<V, string>;
 	'subject-max-length': LengthRuleConfig<V>;
 	'subject-min-length': LengthRuleConfig<V>;
 	'type-case': CaseRuleConfig<V>;