diff --git a/config b/config
index dfe1458..0db8164 100644
--- a/config
+++ b/config
@@ -193,9 +193,13 @@ bindsym $mod+Shift+i focus child
 #
 ## Volume
 #
-bindsym XF86AudioRaiseVolume exec $volume_cmd increase
-bindsym XF86AudioLowerVolume exec $volume_cmd decrease
-bindsym XF86AudioMute exec $volume_cmd mute
+bindsym --locked XF86AudioRaiseVolume exec $volume_cmd increase
+bindsym --locked XF86AudioLowerVolume exec $volume_cmd decrease
+bindsym --locked XF86AudioMute exec $volume_cmd mute
+
+#
+## Brightness
+#
 bindsym XF86MonBrightnessUp exec $brightness_cmd increase
 bindsym XF86MonBrightnessDown exec $brightness_cmd decrease
 #