diff --git a/packages/client/src/components/MkMedia.vue b/packages/client/src/components/MkMedia.vue
index 2cbb881f35..2d214f2709 100644
--- a/packages/client/src/components/MkMedia.vue
+++ b/packages/client/src/components/MkMedia.vue
@@ -61,7 +61,12 @@
 		<div class="buttons">
 			<button
 				v-if="media.comment"
-				v-tooltip="i18n.ts.alt"
+				v-tooltip.noLabel="`${i18n.ts.alt}: ${
+					media.comment.length > 200 ?
+						media.comment.trim().slice(0, 200) + '...'
+						: media.comment.trim()
+				}`"
+				:aria-label="i18n.ts.alt"
 				class="_button"
 				@click.stop="captionPopup"
 			>