diff --git a/conf/.env.production b/conf/.env.production
index bc49471..cdbca94 100644
--- a/conf/.env.production
+++ b/conf/.env.production
@@ -7,7 +7,7 @@ export FLASK_SKIP_DOTENV=1
 # export HOST=
 # export PORT=
 # export APP_SETTINGS=fittrackee.config.ProductionConfig
-export APP_SECRET_KEY='__KEY__'
+export APP_SECRET_KEY='$key'
 # export APP_WORKERS=
 export APP_LOG=fittrackee.log
 export UPLOAD_FOLDER=/home/yunohost.app/__APP__/data