diff --git a/app/config/server.ts b/app/config/server.ts
index aa729edc6..9ba0b4d55 100644
--- a/app/config/server.ts
+++ b/app/config/server.ts
@@ -15,8 +15,6 @@ declare global {
       VERCEL?: string;
       BUILD_MODE?: "standalone" | "export";
       BUILD_APP?: string; // is building desktop app
-
-      PROXY_URL?: string;
       
       HIDE_USER_API_KEY?: string; // disable user's api key input
       DISABLE_GPT4?: string; // allow user to use gpt-4 or not