diff --git a/web/src/bootstrap.ts b/web/src/bootstrap.ts
index b813de02..863fe1af 100644
--- a/web/src/bootstrap.ts
+++ b/web/src/bootstrap.ts
@@ -7,8 +7,7 @@
 async function loadRuntimeConfig() {
   await new Promise<void>((resolve, reject) => {
     const script = document.createElement('script')
-    const base = new URL('./', document.baseURI).pathname
-    script.src = `${base}runtime-config.js`
+    script.src = `${import.meta.env.BASE_URL}runtime-config.js`
     script.async = false
     script.onload = () => resolve()
     script.onerror = () => reject(new Error('Failed to load runtime config'))
diff --git a/web/src/vite-env.d.ts b/web/src/vite-env.d.ts
new file mode 100644
index 00000000..11f02fe2
--- /dev/null
+++ b/web/src/vite-env.d.ts
@@ -0,0 +1 @@
+/// <reference types="vite/client" />