diff --git a/Dockerfile b/Dockerfile
index 208009f..e2f5fcd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,9 +6,10 @@ RUN chmod +x /app/run.sh
 
 WORKDIR /app
 
-ENV EXEC_PATH="/opt/ttyd"
+ENV EXEC_DIR="/opt"
 ENV START_COMMAND="login"
 ENV PORT="2222"
+ENV ALLOW_WRITE="true"
 
 EXPOSE 2222