diff --git a/lib/prepare.js b/lib/prepare.js
index a62dc0732f..f3439cb2e3 100644
--- a/lib/prepare.js
+++ b/lib/prepare.js
@@ -141,7 +141,7 @@ async function resolveOptions (sourceDir) {
     }
     options.themePath = themePath
 
-    const notFoundPath = path.resolve(themeDir, '/NotFound.vue')
+    const notFoundPath = path.resolve(themeDir, 'NotFound.vue')
     if (fs.existsSync(notFoundPath)) {
       options.notFoundPath = notFoundPath
     } else {