diff --git a/packages/backend/src/core/ReversiService.ts b/packages/backend/src/core/ReversiService.ts
index 0d5f989c11..4f68fabc4c 100644
--- a/packages/backend/src/core/ReversiService.ts
+++ b/packages/backend/src/core/ReversiService.ts
@@ -502,6 +502,7 @@ export class ReversiService implements OnApplicationShutdown, OnModuleInit {
 					...parsed.user1,
 					avatar: null,
 					banner: null,
+					background: null,
 					updatedAt: parsed.user1.updatedAt != null ? new Date(parsed.user1.updatedAt) : null,
 					lastActiveDate: parsed.user1.lastActiveDate != null ? new Date(parsed.user1.lastActiveDate) : null,
 					lastFetchedAt: parsed.user1.lastFetchedAt != null ? new Date(parsed.user1.lastFetchedAt) : null,
@@ -511,6 +512,7 @@ export class ReversiService implements OnApplicationShutdown, OnModuleInit {
 					...parsed.user2,
 					avatar: null,
 					banner: null,
+					background: null,
 					updatedAt: parsed.user2.updatedAt != null ? new Date(parsed.user2.updatedAt) : null,
 					lastActiveDate: parsed.user2.lastActiveDate != null ? new Date(parsed.user2.lastActiveDate) : null,
 					lastFetchedAt: parsed.user2.lastFetchedAt != null ? new Date(parsed.user2.lastFetchedAt) : null,