diff --git a/packages/bundler-webpack/src/config/definePlugin.ts b/packages/bundler-webpack/src/config/definePlugin.ts
index 1db98e005dec..ad646fc2552e 100644
--- a/packages/bundler-webpack/src/config/definePlugin.ts
+++ b/packages/bundler-webpack/src/config/definePlugin.ts
@@ -37,6 +37,7 @@ export function resolveDefine(opts: { define: any; publicPath?: string }) {
 
   return {
     'process.env': env,
+    'process.env.SSR_RESOURCE_DIR': 'process.env.SSR_RESOURCE_DIR',
     ...define,
   };
 }