diff --git a/.xprofile b/.xprofile
index 5435c31..5942f59 100644
--- a/.xprofile
+++ b/.xprofile
@@ -22,6 +22,10 @@ xmodmap -e "keysym Menu = Super_R"
 # Register screen locker
 xss-lock -- i3lock -n -eft -i ~/.wallpapers/lockscreen &
 
+# Start polkit authentication agent
+POLKIT_AUTH_AGENT=/usr/lib/polkit-gnome/polkit-gnome-authentication-agent-1
+[ -f $POLKIT_AUTH_AGENT ] && $POLKIT_AUTH_AGENT &
+
 # Include host-specific .xprofile
 [ -f ~/.xprofile.local ] && source ~/.xprofile.local