diff --git a/config/i3/config b/config/i3/config
index bf8d4cf..2242ca3 100644
--- a/config/i3/config
+++ b/config/i3/config
@@ -171,7 +171,7 @@ bindsym XF86MonBrightnessUp exec gmux_backlight +100
 bindsym XF86MonBrightnessDown exec gmux_backlight -100
 
 # Microphone Toggle
-bindsym $mod+backslash exec pactl set-source-mute 0 toggle
+bindsym $mod+backslash exec pactl set-source-mute @DEFAULT_SOURCE@ toggle
 
 # Composite
 exec compton