diff --git a/packages/frontend/src/pages/settings/mute-block.instance-mute.vue b/packages/frontend/src/pages/settings/mute-block.instance-mute.vue
index 9e47ea9507..8671ec102d 100644
--- a/packages/frontend/src/pages/settings/mute-block.instance-mute.vue
+++ b/packages/frontend/src/pages/settings/mute-block.instance-mute.vue
@@ -30,7 +30,7 @@ const changed = ref(false);
 const autochange = ref(false);
 
 async function save() {
-	let mutes = instanceMutes.value
+	const mutes = instanceMutes.value
 		.trim().split('\n')
 		.map(el => el.toLowerCase().trim())
 		.filter(el => el);