diff --git a/GUI/src/Layout.vue b/GUI/src/Layout.vue
index 8fbcf6a..0d92826 100644
--- a/GUI/src/Layout.vue
+++ b/GUI/src/Layout.vue
@@ -20,9 +20,9 @@ function toggleDrawer() {
 
 onMounted(() => {
   theme.change(
-    localStorage.getItem('theme') || window.matchMedia('(prefers-color-scheme: dark)').matches
+    localStorage.getItem('theme') || (window.matchMedia('(prefers-color-scheme: dark)').matches
       ? 'dark'
-      : 'light',
+      : 'light')
   );
   showDrawer.value = localStorage.getItem('drawer')?.startsWith('Y') || false;
 });