diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4cd0d6470e..002b229f27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ You should also include the user name that made the change.
 - Client: Add vi-VN language support
 
 ### Bugfixes
+- Server: リモートユーザーを正しくブロックできるように修正する @xianonn
 - Client: 一度作ったwebhookの設定画面を開こうとするとページがフリーズする @syuilo
 - Client: MiAuth認証ページが機能していない @syuilo
 
diff --git a/packages/backend/src/remote/activitypub/renderer/block.ts b/packages/backend/src/remote/activitypub/renderer/block.ts
index 13815fb76f..802d7280b1 100644
--- a/packages/backend/src/remote/activitypub/renderer/block.ts
+++ b/packages/backend/src/remote/activitypub/renderer/block.ts
@@ -7,7 +7,7 @@ import { Blocking } from '@/models/entities/blocking.js';
  * @param block The block to be rendered. The blockee relation must be loaded.
  */
 export function renderBlock(block: Blocking) {
-	if (block.blockee?.url == null) {
+	if (block.blockee?.uri == null) {
 		throw new Error('renderBlock: missing blockee uri');
 	}