diff --git a/src/inspectors/validateDateFormat.ts b/src/inspectors/validateDateFormat.ts
index be3d7311..8fc85626 100644
--- a/src/inspectors/validateDateFormat.ts
+++ b/src/inspectors/validateDateFormat.ts
@@ -4,7 +4,7 @@ import { SUB_STEPS } from '../domain/verifier/entities/verificationSteps';
 import { getText } from '../domain/i18n/useCases';
 import type { DatesToValidate } from '../domain/verifier/useCases/getDatesToValidate';
 
-export default function validateDateFormat (dates: DatesToValidate): void {
+export default function validateDateFormat (dates: DatesToValidate[]): void {
   for (const { dateTimeStamp, property } of dates) {
     if (!validateDateTimeStamp(dateTimeStamp)) {
       console.error('Date', dateTimeStamp, 'is not valid:', property);