diff --git a/src/App.vue b/src/App.vue
index ca417e6..a702602 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -96,12 +96,6 @@ onMounted(async () => {
     }
   };
   timerWorker.postMessage({ interval: lookahead.value });
-
-  if((navigator.userLanguage || navigator.language).split('-')[0] === 'ja') {
-    lang.value = 'ja';
-  } else {
-    lang.value = 'en';
-  }
 });
 
 onUnmounted(() => {