diff --git a/dom0.sh b/dom0.sh
index 46bc39e..514f69a 100644
--- a/dom0.sh
+++ b/dom0.sh
@@ -9,6 +9,12 @@ gtk-theme-name=Arc-Dark
 gtk-application-prefer-dark-theme=1
 ' | sudo tee /etc/gtk-3.0/settings.ini
 
+sudo mkdir /etc/gtk-4.0
+echo '[Settings]
+gtk-theme-name=Arc-Dark
+gtk-application-prefer-dark-theme=1
+' | sudo tee /etc/gtk-4.0/settings.ini
+
 sudo qubes-dom0-update qubes-u2f-dom0 qubes-yubikey-dom0 qt5ct qt5-qtstyleplugins
 qvm-service --enable personal qubes-u2f-proxy
 qvm-service --enable work qubes-u2f-proxy