diff --git a/packages/backend/src/core/entities/NoteEntityService.ts b/packages/backend/src/core/entities/NoteEntityService.ts
index 2a2b962ed0..ab7e71d485 100644
--- a/packages/backend/src/core/entities/NoteEntityService.ts
+++ b/packages/backend/src/core/entities/NoteEntityService.ts
@@ -339,6 +339,7 @@ export class NoteEntityService implements OnModuleInit {
 				id: channel.id,
 				name: channel.name,
 				color: channel.color,
+				isSensitive: channel.isSensitive,
 			} : undefined,
 			mentions: note.mentions.length > 0 ? note.mentions : undefined,
 			uri: note.uri ?? undefined,
diff --git a/packages/backend/src/models/json-schema/note.ts b/packages/backend/src/models/json-schema/note.ts
index dc7c0462fa..eb744aa109 100644
--- a/packages/backend/src/models/json-schema/note.ts
+++ b/packages/backend/src/models/json-schema/note.ts
@@ -139,6 +139,10 @@ export const packedNoteSchema = {
 						type: 'string',
 						optional: false, nullable: true,
 					},
+					isSensitive: {
+						type: 'boolean',
+						optional: true, nullable: false,
+					}
 				},
 			},
 		},