diff --git a/src/client/ui/zen.vue b/src/client/ui/zen.vue
index 66dfa72797619a002ce6abcc2abbece2d44cc00c..0435f0f5826ce4aca7dcbf2b2a60df59f4738ee0 100644
--- a/src/client/ui/zen.vue
+++ b/src/client/ui/zen.vue
@@ -117,7 +117,6 @@ export default defineComponent({
 .mk-app {
 	$header-height: 52px;
 	$ui-font-size: 1em; // TODO: どこかに集約したい
-	$widgets-hide-threshold: 1090px;
 
 	// ほんとは単に 100vh と書きたいところだが... https://css-tricks.com/the-trick-to-viewport-units-on-mobile/
 	min-height: calc(var(--vh, 1vh) * 100);