diff --git a/backend/.env.example b/backend/.env.example
index c9e77a4..9ab92b1 100644
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -8,6 +8,7 @@ SECRET="secret"
 # See the documentation for all the connection string options: https://pris.ly/d/connection-strings
 
 DATABASE_URL="{DATABASE_URL}"
+BACKEND_URL=""
 SMTP_EMAIL="{}"
 SMTP_PASSWORD="{}"
 SMTP_PORT=465