diff --git a/src/plugins/app.ts b/src/plugins/app.ts
index 7087d219..e59f6160 100644
--- a/src/plugins/app.ts
+++ b/src/plugins/app.ts
@@ -92,7 +92,9 @@ export function setupAppVersionNotification() {
 }
 
 async function getHtmlBuildTime() {
-  const res = await fetch(`/index.html?time=${Date.now()}`);
+  const baseUrl = import.meta.env.VITE_BASE_URL || '/';
+
+  const res = await fetch(`${baseUrl}index.html?time=${Date.now()}`);
 
   const html = await res.text();