diff --git a/contrib/systemd/xdg-desktop-portal-wlr.service.in b/contrib/systemd/xdg-desktop-portal-wlr.service.in
index d4a83c6..ed9fddc 100644
--- a/contrib/systemd/xdg-desktop-portal-wlr.service.in
+++ b/contrib/systemd/xdg-desktop-portal-wlr.service.in
@@ -1,5 +1,7 @@
 [Unit]
 Description=Portal service (wlroots implementation)
+PartOf=graphical-session.target
+After=graphical-session.target
 
 [Service]
 Type=dbus