diff --git a/packages/frontend-embed/src/components/EmUserName.vue b/packages/frontend-embed/src/components/EmUserName.vue
index c0c7c443ca..0132b43714 100644
--- a/packages/frontend-embed/src/components/EmUserName.vue
+++ b/packages/frontend-embed/src/components/EmUserName.vue
@@ -4,7 +4,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<EmMfm :text="user.name ?? user.username" :author="user" :plain="true" :nowrap="nowrap" :emojiUrls="user.emojis"/>
+<span style="unicode-bidi: plaintext; display: inline-block;">
+	<EmMfm :text="user.name ?? user.username" :author="user" :plain="true" :nowrap="nowrap" :emojiUrls="user.emojis"/>
+</span>
 </template>
 
 <script lang="ts" setup>
diff --git a/packages/frontend/src/components/global/MkUserName.vue b/packages/frontend/src/components/global/MkUserName.vue
index c5bcf53102..c32799c057 100644
--- a/packages/frontend/src/components/global/MkUserName.vue
+++ b/packages/frontend/src/components/global/MkUserName.vue
@@ -4,7 +4,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 -->
 
 <template>
-<Mfm :text="user.name ?? user.username" :author="user" :plain="true" :nowrap="nowrap" :emojiUrls="user.emojis"/>
+<span style="unicode-bidi: plaintext; display: inline-block;">
+	<Mfm :text="user.name ?? user.username" :author="user" :plain="true" :nowrap="nowrap" :emojiUrls="user.emojis"/>
+</span>
 </template>
 
 <script lang="ts" setup>