diff --git a/src/api/types/activities.ts b/src/api/types/activities.ts
index cac00124..9dd136a9 100644
--- a/src/api/types/activities.ts
+++ b/src/api/types/activities.ts
@@ -154,7 +154,7 @@ export interface ActivityRegisterPayload {
   price: number;
   bannerImageUrl: string;
   subImageUrls: string[];
-  schedule: ActivityRegisterSchedule[];
+  schedules: ActivityRegisterSchedule[];
 }
 
 export interface ActivityRegisterSchedule {
diff --git a/src/app/mypage/(NoLayout)/add-activity/page.tsx b/src/app/mypage/(NoLayout)/add-activity/page.tsx
index 6998cb5f..7b651635 100644
--- a/src/app/mypage/(NoLayout)/add-activity/page.tsx
+++ b/src/app/mypage/(NoLayout)/add-activity/page.tsx
@@ -122,7 +122,7 @@ export default function Page() {
         formData.entries(),
       );
       data.price = Number(data.price);
-      data.schedule = scheduleList;
+      data.schedules = scheduleList;
       data.bannerImageUrl = bannerImages[0];
       data.subImageUrls = subImages;