diff --git a/screenshot-service.service b/screenshot-service.service
index 88c10d4..a17a30a 100644
--- a/screenshot-service.service
+++ b/screenshot-service.service
@@ -7,7 +7,7 @@ Type=simple
 User=root
 Group=root
 WorkingDirectory=/root/ss
-ExecStartPre=/usr/bin/bash -c 'docker rm -f $(docker ps | grep headless-fox | awk \'{print $1}\')'
+ExecStartPre=/usr/bin/bash -c 'docker ps | grep headless-fox | sed 's/ .*//' | xargs -I {} docker rm -f {}'
 ExecStart=node /root/ss
 Restart=on-failure
 RestartSec=1s