diff --git a/express-validator/express-validator.d.ts b/express-validator/express-validator.d.ts
index cb15aebf8f..583ffbf6e8 100644
--- a/express-validator/express-validator.d.ts
+++ b/express-validator/express-validator.d.ts
@@ -33,7 +33,7 @@ declare namespace ExpressValidator {
 	}
 
 	interface ValidatorFunction { (item: string | {}, message?: string): Validator; }
-	interface ValidatorExtraFunction extends ValidatorFunction { (matchIndex: number, message?: string): Validator; };
+	interface ValidatorExtraFunction extends ValidatorFunction { (matchIndex: number, message?: string): Validator; }
 	interface SanitizerFunction { (item: string): Sanitizer; }
 	interface Dictionary<T> { [key: string]: T; }