diff --git a/packages/backend/src/core/NoteDraftService.ts b/packages/backend/src/core/NoteDraftService.ts
index fc980b3ac3..7073789b53 100644
--- a/packages/backend/src/core/NoteDraftService.ts
+++ b/packages/backend/src/core/NoteDraftService.ts
@@ -18,7 +18,7 @@ import { isRenote, isQuote } from '@/misc/is-renote.js';
 import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { QueueService } from '@/core/QueueService.js';
 
-export type NoteDraftOptions = MiNoteDraft;
+export type NoteDraftOptions = Omit<MiNoteDraft, 'id' | 'userId' | 'user' | 'reply' | 'renote' | 'channel'>;
 
 @Injectable()
 export class NoteDraftService {
diff --git a/packages/backend/src/server/api/endpoints/notes/drafts/create.ts b/packages/backend/src/server/api/endpoints/notes/drafts/create.ts
index 0529d0bcdc..a30a49e0a3 100644
--- a/packages/backend/src/server/api/endpoints/notes/drafts/create.ts
+++ b/packages/backend/src/server/api/endpoints/notes/drafts/create.ts
@@ -198,12 +198,11 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		super(meta, paramDef, async (ps, me) => {
 			const draft = await this.noteDraftService.create(me, {
 				fileIds: ps.fileIds,
-				poll: ps.poll ? {
-					choices: ps.poll.choices,
-					multiple: ps.poll.multiple ?? false,
-					expiresAt: ps.poll.expiresAt ? new Date(ps.poll.expiresAt) : null,
-					expiredAfter: ps.poll.expiredAfter ?? null,
-				} : null,
+				pollChoices: ps.poll?.choices ?? [],
+				pollMultiple: ps.poll?.multiple ?? false,
+				pollExpiresAt: ps.poll?.expiresAt ? new Date(ps.poll.expiresAt) : null,
+				pollExpiredAfter: ps.poll?.expiredAfter ?? null,
+				hasPoll: ps.poll != null,
 				text: ps.text,
 				replyId: ps.replyId,
 				renoteId: ps.renoteId,
diff --git a/packages/backend/src/server/api/endpoints/notes/drafts/update.ts b/packages/backend/src/server/api/endpoints/notes/drafts/update.ts
index 9755c857f6..dd8534e7e2 100644
--- a/packages/backend/src/server/api/endpoints/notes/drafts/update.ts
+++ b/packages/backend/src/server/api/endpoints/notes/drafts/update.ts
@@ -230,12 +230,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		super(meta, paramDef, async (ps, me) => {
 			const draft = await this.noteDraftService.update(me, ps.draftId, {
 				fileIds: ps.fileIds,
-				poll: ps.poll ? {
-					choices: ps.poll.choices,
-					multiple: ps.poll.multiple ?? false,
-					expiresAt: ps.poll.expiresAt ? new Date(ps.poll.expiresAt) : null,
-					expiredAfter: ps.poll.expiredAfter ?? null,
-				} : undefined,
+				pollChoices: ps.poll?.choices,
+				pollMultiple: ps.poll?.multiple,
+				pollExpiresAt: ps.poll?.expiresAt ? new Date(ps.poll.expiresAt) : null,
+				pollExpiredAfter: ps.poll?.expiredAfter,
 				text: ps.text,
 				replyId: ps.replyId,
 				renoteId: ps.renoteId,