diff --git a/packages/frontend/src/components/MkAnnouncementDialog.vue b/packages/frontend/src/components/MkAnnouncementDialog.vue
index 22b17c835d..904ba1796d 100644
--- a/packages/frontend/src/components/MkAnnouncementDialog.vue
+++ b/packages/frontend/src/components/MkAnnouncementDialog.vue
@@ -113,7 +113,6 @@ onMounted(() => {
 	position: sticky;
 	bottom: 0;
 	left: -32px;
-	-webkit-backdrop-filter: var(--MI-blur, blur(15px));
 	backdrop-filter: var(--MI-blur, blur(15px));
 	background: color(from var(--MI_THEME-bg) srgb r g b / 0.5);
 	margin: 0 -32px;