diff --git a/electron/main/index.ts b/electron/main/index.ts
index ddeb673..a368070 100644
--- a/electron/main/index.ts
+++ b/electron/main/index.ts
@@ -28,7 +28,7 @@ export const ROOT_PATH = {
 let win: BrowserWindow | null = null
 // Here, you can also use other preload
 const preload = join(__dirname, '../preload/index.js')
-const url = process.env.VITE_DEV_SERVER_URL
+const url = process.env.VITE_DEV_SERVER_URL as string
 const indexHtml = join(ROOT_PATH.dist, 'index.html')
 
 async function createWindow() {