diff --git a/niri.nix b/niri.nix
index bc99798..e82e178 100644
--- a/niri.nix
+++ b/niri.nix
@@ -46,6 +46,7 @@
     };
     Service = {
       ExecStart = "${pkgs.xwayland-satellite}/bin/xwayland-satellite";
+      ExecStartPost = "${pkgs.systemd}/bin/systemctl --user set-environment DISPLAY=:0";
       Restart = "on-failure";
     };
     Install.WantedBy = [ "graphical-session.target" ];