diff --git a/build_ui/vue.config.js b/build_ui/vue.config.js
index 56dc4b5a9..ea6418662 100644
--- a/build_ui/vue.config.js
+++ b/build_ui/vue.config.js
@@ -44,7 +44,7 @@ module.exports = {
         target: process.env.VUE_APP_BACKEND_URL || 'http://127.0.0.1:8096',
         changeOrigin: true,
         pathRewrite: {
-          ['^' + process.env.VUE_APP_BASE_API]: ''
+          ['^' + process.env.VUE_APP_BASE_API]: process.env.VUE_APP_BACKEND_PATH !== undefined ? process.env.VUE_APP_BACKEND_PATH : ''
         }
       }
     },