diff --git a/src/env.d.ts b/src/env.d.ts
index 7218154c2..5ce093285 100644
--- a/src/env.d.ts
+++ b/src/env.d.ts
@@ -7,6 +7,7 @@ interface ImportMetaEnv {
   PUBLIC_APP_URL: string;
   PUBLIC_AVATAR_BASE_URL: string;
   PUBLIC_EDITOR_APP_URL: string;
+  PUBLIC_COURSE_APP_URL: string;
 }
 
 interface ImportMeta {