diff --git a/home/user/.config/i3/config b/home/user/.config/i3/config
index f0de1c3..7e2815a 100644
--- a/home/user/.config/i3/config
+++ b/home/user/.config/i3/config
@@ -36,7 +36,7 @@ set $font_size 11
 font xft:FiraCode $font_size
 
 # use pactl to adjust volume in PulseAudio.
-set $refresh_i3blocks killall -10 i3blocks
+set $refresh_i3blocks exec pkill -SIGRTMIN+10 i3blocks
 bindsym XF86AudioRaiseVolume exec pactl set-sink-volume @DEFAULT_SINK@ +10% && $refresh_i3blocks
 bindsym XF86AudioLowerVolume exec pactl set-sink-volume @DEFAULT_SINK@ -10% && $refresh_i3blocks
 bindsym XF86AudioMute exec pactl set-sink-mute @DEFAULT_SINK@ toggle && $refresh_i3blocks