diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index f4c33f6ea8..43d64eabf5 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -89,7 +89,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<div v-if="translating || translation != null" :class="$style.translation">
 							<MkLoading v-if="translating" mini/>
 							<div v-else-if="translation && translation.text != null">
-								<b>{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
+								<b v-if="translation.sourceLang">{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
 								<Mfm :text="translation.text" :isBlock="true" :author="appearNote.user" :nyaize="'respect'" :emojiUrls="appearNote.emojis" class="_selectable"/>
 							</div>
 							<div v-else>{{ i18n.ts.translationFailed }}</div>
diff --git a/packages/frontend/src/components/MkNoteDetailed.vue b/packages/frontend/src/components/MkNoteDetailed.vue
index dcdbfaf53f..48c66d235f 100644
--- a/packages/frontend/src/components/MkNoteDetailed.vue
+++ b/packages/frontend/src/components/MkNoteDetailed.vue
@@ -107,7 +107,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<div v-if="translating || translation != null" :class="$style.translation">
 					<MkLoading v-if="translating" mini/>
 					<div v-else-if="translation && translation.text != null">
-						<b>{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
+						<b v-if="translation.sourceLang">{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
 						<Mfm :text="translation.text" :isBlock="true" :author="appearNote.user" :nyaize="'respect'" :emojiUrls="appearNote.emojis" class="_selectable"/>
 					</div>
 					<div v-else>{{ i18n.ts.translationFailed }}</div>
diff --git a/packages/frontend/src/components/MkSubNoteContent.vue b/packages/frontend/src/components/MkSubNoteContent.vue
index 792ad560b9..9a59678a99 100644
--- a/packages/frontend/src/components/MkSubNoteContent.vue
+++ b/packages/frontend/src/components/MkSubNoteContent.vue
@@ -15,7 +15,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 		<div v-if="translating || translation != null" :class="$style.translation">
 			<MkLoading v-if="translating" mini/>
 			<div v-else-if="translation && translation.text != null">
-				<b>{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
+				<b v-if="translation.sourceLang">{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
 				<Mfm :text="translation.text" :isBlock="true" :author="note.user" :nyaize="'respect'" :emojiUrls="note.emojis" class="_selectable"/>
 			</div>
 			<div v-else>{{ i18n.ts.translationFailed }}</div>
diff --git a/packages/frontend/src/components/SkNote.vue b/packages/frontend/src/components/SkNote.vue
index 4f8b3a0900..0ff3535f64 100644
--- a/packages/frontend/src/components/SkNote.vue
+++ b/packages/frontend/src/components/SkNote.vue
@@ -91,7 +91,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<div v-if="translating || translation != null" :class="$style.translation">
 							<MkLoading v-if="translating" mini/>
 							<div v-else-if="translation && translation.text != null">
-								<b>{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
+								<b v-if="translation.sourceLang">{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
 								<Mfm :text="translation.text" :isBlock="true" :author="appearNote.user" :nyaize="'respect'" :emojiUrls="appearNote.emojis" class="_selectable"/>
 							</div>
 							<div v-else>{{ i18n.ts.translationFailed }}</div>
diff --git a/packages/frontend/src/components/SkNoteDetailed.vue b/packages/frontend/src/components/SkNoteDetailed.vue
index e2a9ba9a40..5b01d278ec 100644
--- a/packages/frontend/src/components/SkNoteDetailed.vue
+++ b/packages/frontend/src/components/SkNoteDetailed.vue
@@ -112,7 +112,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 				<div v-if="translating || translation != null" :class="$style.translation">
 					<MkLoading v-if="translating" mini/>
 					<div v-else-if="translation && translation.text != null">
-						<b>{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
+						<b v-if="translation.sourceLang">{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
 						<Mfm :text="translation.text" :isBlock="true" :author="appearNote.user" :nyaize="'respect'" :emojiUrls="appearNote.emojis" class="_selectable"/>
 					</div>
 					<div v-else>{{ i18n.ts.translationFailed }}</div>
diff --git a/packages/frontend/src/components/SkOldNoteWindow.vue b/packages/frontend/src/components/SkOldNoteWindow.vue
index 01339dbab8..47d813ea3f 100644
--- a/packages/frontend/src/components/SkOldNoteWindow.vue
+++ b/packages/frontend/src/components/SkOldNoteWindow.vue
@@ -45,7 +45,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 					<div v-if="translating || translation != null" :class="$style.translation">
 						<MkLoading v-if="translating" mini/>
 						<div v-else-if="translation && translation.text != null">
-							<b>{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
+							<b v-if="translation.sourceLang">{{ i18n.tsx.translatedFrom({ x: translation.sourceLang }) }}: </b>
 							<Mfm :text="translation.text" :isBlock="true" :author="appearNote.user" :nyaize="'respect'" :emojiUrls="appearNote.emojis"/>
 						</div>
 						<div v-else>{{ i18n.ts.translationFailed }}</div>