diff --git a/.config/i3/lock.sh b/.config/i3/lock.sh
index 363a514..a6ee73f 100755
--- a/.config/i3/lock.sh
+++ b/.config/i3/lock.sh
@@ -2,6 +2,7 @@
 
 lock() {
     killall -SIGHUP gpg-agent
+    pactl set-sink-mute @DEFAULT_SINK@ true
 
     # needs i3lock-color
     i3lock --ignore-empty-password --clock --indicator --show-failed-attempts \