diff --git a/packages/frontend/src/components/global/MkAcct.stories.impl.ts b/packages/frontend/src/components/global/MkAcct.stories.impl.ts
index 68202bb705..9d5fd3947d 100644
--- a/packages/frontend/src/components/global/MkAcct.stories.impl.ts
+++ b/packages/frontend/src/components/global/MkAcct.stories.impl.ts
@@ -47,8 +47,24 @@ export const Long = {
 		...Default.args,
 		user: {
 			...userDetailed(),
-			username: '2c7cc62a697ea3a7826521f3fd34f0cb273693cbe5e9310f35449f43622a5cdc',
-			host: 'nostr.example',
+			username: 'the_quick_brown_fox_jumped_over_the_lazy_dog',
+			host: 'misskey.example',
+		},
+	},
+	decorators: [
+		() => ({
+			template: '<div style="width: 360px;"><story/></div>',
+		}),
+	],
+} satisfies StoryObj<typeof MkAcct>;
+export const VeryLong = {
+	...Default,
+	args: {
+		...Default.args,
+		user: {
+			...userDetailed(),
+			username: '2c7cc62a697ea3a7826521f3fd34f0cb273693cbe5e9310f35449f43622a5cdc',
+			host: 'the.quick.brown.fox.jumped.over.the.lazy.dog.very.long.hostname.nostr.example',
 		},
 	},
 	decorators: [
diff --git a/packages/frontend/src/components/global/MkAcct.vue b/packages/frontend/src/components/global/MkAcct.vue
index 3b0715a23c..59358aef70 100644
--- a/packages/frontend/src/components/global/MkAcct.vue
+++ b/packages/frontend/src/components/global/MkAcct.vue
@@ -1,5 +1,5 @@
 <template>
-<MkCondensedLine v-if="defaultStore.state.enableCondensedLineForAcct">
+<MkCondensedLine v-if="defaultStore.state.enableCondensedLineForAcct" :min-scale="2 / 3">
 	<span>@{{ user.username }}</span>
 	<span v-if="user.host || detail || defaultStore.state.showFullAcct" style="opacity: 0.5;">@{{ user.host || host }}</span>
 </MkCondensedLine>
diff --git a/packages/frontend/src/components/global/MkCondensedLine.vue b/packages/frontend/src/components/global/MkCondensedLine.vue
index e3c0a866b7..40c7766a2a 100644
--- a/packages/frontend/src/components/global/MkCondensedLine.vue
+++ b/packages/frontend/src/components/global/MkCondensedLine.vue
@@ -7,14 +7,19 @@
 </template>
 
 <script lang="ts">
+interface Props {
+	readonly minScale?: number;
+}
+
 const contentSymbol = Symbol();
 const observer = new ResizeObserver((entries) => {
 	for (const entry of entries) {
 		const content = (entry.target[contentSymbol] ? entry.target : entry.target.firstElementChild) as HTMLSpanElement;
+		const props: Required<Props> = content[contentSymbol];
 		const container = content.parentElement as HTMLSpanElement;
 		const contentWidth = content.getBoundingClientRect().width;
 		const containerWidth = container.getBoundingClientRect().width;
-		container.style.transform = `scaleX(${Math.min(1, containerWidth / contentWidth)})`;
+		container.style.transform = `scaleX(${Math.max(props.minScale, Math.min(1, containerWidth / contentWidth))})`;
 	}
 });
 </script>
@@ -22,6 +27,10 @@ const observer = new ResizeObserver((entries) => {
 <script setup lang="ts">
 import { ref, watch } from 'vue';
 
+const props = withDefaults(defineProps<Props>(), {
+	minScale: 0,
+});
+
 const content = ref<HTMLSpanElement>();
 
 watch(content, (value, oldValue) => {
@@ -33,7 +42,7 @@ watch(content, (value, oldValue) => {
 		}
 	}
 	if (value) {
-		value[contentSymbol] = contentSymbol;
+		value[contentSymbol] = props;
 		observer.observe(value);
 		if (value.parentElement) {
 			observer.observe(value.parentElement);