diff --git a/XDG-Desktop-Portal-configuration.md b/XDG-Desktop-Portal-configuration.md
index 82532c4..9c7108d 100644
--- a/XDG-Desktop-Portal-configuration.md
+++ b/XDG-Desktop-Portal-configuration.md
@@ -4,11 +4,21 @@ Make sure you have installed both the `gtk` and `wlr` portal backends.
 
 ## Setup the environment
 From [xdg-desktop-portal-wlr](https://github.com/emersion/xdg-desktop-portal-wlr/tree/master?tab=readme-ov-file#running):
-> Make sure `XDG_CURRENT_DESKTOP` is set. Make sure `WAYLAND_DISPLAY` and `XDG_CURRENT_DESKTOP` are imported into D-Bus. If you're running Sway, this can be added to your config file:
-```sh
-exec dbus-update-activation-environment --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=sway
+> Make sure `XDG_CURRENT_DESKTOP` is set. Make sure `WAYLAND_DISPLAY` and `XDG_CURRENT_DESKTOP` are imported into D-Bus.
+
+See [Systemd and dbus activation environments](https://github.com/swaywm/sway/wiki#systemd-and-dbus-activation-environments)
+
+If dbus implementation is `dbus-broker`, systemd activation environment is used:
+
 ```
-`--systemd` can be omitted if you don't use it.
+exec systemctl --user import-environment WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=${XDG_CURRENT_DESKTOP:-sway:wlroots}
+```
+If classic dbus is used, it has its own separate one:
+
+```sh
+exec dbus-update-activation-environment WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=${XDG_CURRENT_DESKTOP:-sway:wlroots}
+```
+`XDG_CURRENT_DESKTOP` should be passed through in case it was set before sway (i.e. by a Display Manager)
 
 ## Set the portals Sway should use
 From `portals.conf(5)`: