diff --git a/packages/backend/src/server/api/mastodon/endpoints/status.ts b/packages/backend/src/server/api/mastodon/endpoints/status.ts
index 38199740a3..6494ad5a62 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/status.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/status.ts
@@ -46,7 +46,7 @@ export function apiStatusMastodon(router: Router): void {
 				}
 			}
 			if (!body.media_ids) body.media_ids = undefined;
-			if (body.media_ids && !body.media_ids.length) body.media_ids = undefined;		             
+			if (body.media_ids && !body.media_ids.length) body.media_ids = undefined;
 			const { sensitive } = body
 			body.sensitive = typeof sensitive === 'string' ? sensitive === 'true' : sensitive
 			const data = await client.postStatus(text, body);
diff --git a/packages/backend/src/server/api/mastodon/endpoints/timeline.ts b/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
index 23729e4804..0393a206c0 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
@@ -43,10 +43,11 @@ export function toTextWithReaction(status: Entity.Status[], host: string) {
 		for (const r of reaction) {
 				if (!r.url) continue
 				emoji.push({
-						'shortcode': r.name,
-						'url': r.url,
-						'static_url': r.url,
-						'visible_in_picker': true,
+					'shortcode': r.name,
+					'url': r.url,
+					'static_url': r.url,
+					'visible_in_picker': true,
+					category: ""
 				},)
 		}
 		const isMe = reaction.findIndex((r) => r.me) > -1;