diff --git a/dotfiles/config/kanshi/config b/dotfiles/config/kanshi/config
index 4c82847..e1ea6aa 100644
--- a/dotfiles/config/kanshi/config
+++ b/dotfiles/config/kanshi/config
@@ -5,6 +5,13 @@ profile external-dell {
     output "Dell Inc. DELL P2416D 6RC2C54O0NWS" mode 2560x1440 position 0,0 scale 1.75
 }
 
+profile external-dell-4k {
+    output eDP-1 disable
+    # DELL U3219Q 9RSG413, 31.5 inches, 139.87 PPI (see https://www.sven.de/dpi/)
+    # "make model serial" from `swaymsg -t get_outputs`
+    output "Dell Inc. DELL U3219Q 9RSG413" mode 3840x2160 position 0,0 scale 2
+}
+
 profile external-hp1 {
     output eDP-1 disable
     # HP E243, 23 inches, 95.78 PPI (see https://www.sven.de/dpi/)