diff --git a/plugins/osx/osx.plugin.zsh b/plugins/osx/osx.plugin.zsh
index 682bb2667..bf35ce690 100644
--- a/plugins/osx/osx.plugin.zsh
+++ b/plugins/osx/osx.plugin.zsh
@@ -97,3 +97,6 @@ function trash() {
   IFS=$temp_ifs
 }
 
+function lock() {
+    open -a ScreenSaverEngine
+}