diff --git a/packages/frontend/src/components/MkUserPopup.vue b/packages/frontend/src/components/MkUserPopup.vue
index c9ff02cc7..c3b777a12 100644
--- a/packages/frontend/src/components/MkUserPopup.vue
+++ b/packages/frontend/src/components/MkUserPopup.vue
@@ -22,7 +22,7 @@
 				<div :class="$style.username"><MkAcct :user="user"/></div>
 			</div>
 			<div :class="$style.description">
-				<Mfm v-if="user.description" :text="user.description" :author="user" :i="$i"/>
+				<Mfm v-if="user.description" :class="$style.mfm" :text="user.description" :author="user" :i="$i"/>
 				<div v-else style="opacity: 0.7;">{{ i18n.ts.noAccountDescription }}</div>
 			</div>
 			<div :class="$style.status">
@@ -192,6 +192,13 @@ onMounted(() => {
 	border-bottom: solid 1px var(--divider);
 }
 
+.mfm {
+	display: -webkit-box;
+	-webkit-line-clamp: 5;
+	-webkit-box-orient: vertical;  
+	overflow: hidden;
+}
+
 .status {
 	padding: 16px 26px 16px 26px;
 }