diff --git a/packages/backend/src/models/json-schema/user.ts b/packages/backend/src/models/json-schema/user.ts
index f5b9b89078c3..8df37a4d8adb 100644
--- a/packages/backend/src/models/json-schema/user.ts
+++ b/packages/backend/src/models/json-schema/user.ts
@@ -433,6 +433,7 @@ export const packedUserDetailedNotMeOnlySchema = {
 			nullable: true, optional: false,
 			items: {
 				type: 'object',
+				nullable: false, optional: false,
 				properties: {
 					id: {
 						type: 'string',
@@ -814,4 +815,4 @@ export const packedUserBannerSchema = {
 			nullable: true, optional: false,
 		},
 	},
-};
+} as const;