diff --git a/process.js b/process.js
index 849c9e0..728cc7f 100644
--- a/process.js
+++ b/process.js
@@ -34,7 +34,7 @@ let commands = {
       return 'gnome-screensaver-command -a'
     },
     lock () {
-      return 'gnome-screensaver-command -l'
+      return 'dm-tool lock'
     },
     shutdown () {
       return 'systemctl poweroff'