diff --git a/i3/config b/i3/config
index 4906456..77017fc 100644
--- a/i3/config
+++ b/i3/config
@@ -34,6 +34,8 @@ exec --no-startup-id xss-lock --transfer-sleep-lock -- i3lock --nofork
 # and nm-applet is a desktop environment-independent system tray GUI for it.
 exec --no-startup-id nm-applet
 
+exec --no-startup-id /usr/lib/polkit-gnome/polkit-gnome-authentication-agent-1 &
+
 # Use pactl to adjust volume in PulseAudio.
 set $refresh_i3status killall -SIGUSR1 i3status
 bindsym XF86AudioRaiseVolume exec --no-startup-id pactl set-sink-volume @DEFAULT_SINK@ +2% && $refresh_i3status