diff --git a/awesome/rc.lua b/awesome/rc.lua
index cf2b26c..a04ad4c 100644
--- a/awesome/rc.lua
+++ b/awesome/rc.lua
@@ -441,7 +441,7 @@ globalkeys = awful.util.table.join(
         end, {description="start the web browser", group="custom"}),
 
     awful.key({modkey}, "l", function()
-        os.execute('slock')
+        os.execute('bash -c "sleep 0.1 && xset dpms force off && slock"')
     end, { description="Locks the screen", group="custom"}),
 
     awful.key({modkey, "Shift"}, "Tab", function()