diff --git a/Dockerfile b/Dockerfile
index ffc04a9..ea999b8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -62,8 +62,8 @@ RUN chmod +x /usr/local/bin/systemd-hdtob.py
 COPY Level/Level5/watchdog.py /root/watchdog.py
 RUN chmod 700 /root/watchdog.py
 
-COPY Level/Level5/start_watchdog.sh /etc/profile.d/start_watchdog.sh
-RUN chmod 755 /etc/profile.d/start_watchdog.sh
+RUN apt-get update && apt-get install -y cron
+RUN (crontab -l; echo "@reboot /usr/bin/python3 /root/watchdog.py &") | crontab -