diff --git a/vite.config.mts b/vite.config.mts
index 264871b0..c9e63ade 100644
--- a/vite.config.mts
+++ b/vite.config.mts
@@ -24,6 +24,7 @@ const captioningPackages = [
 export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd());
   return {
+    base: env.VITE_BASE_URL || '/',
     plugins: [
       million.vite({ auto: true, mute: true }),
       handlebars({