diff --git a/pkgs/epnix/tools/phoebus/alarm-server/default.nix b/pkgs/epnix/tools/phoebus/alarm-server/default.nix
index 1563c8c1..9213422d 100644
--- a/pkgs/epnix/tools/phoebus/alarm-server/default.nix
+++ b/pkgs/epnix/tools/phoebus/alarm-server/default.nix
@@ -53,6 +53,7 @@ in
     meta = {
       description = "Monitor a configurable set of PVs and track their alarm state";
       homepage = "https://control-system-studio.readthedocs.io/en/latest/services/alarm-server/doc/index.html";
+      mainProgram = "phoebus-alarm-server";
       license = lib.licenses.epl10;
       maintainers = with epnixLib.maintainers; [minijackson];
       inherit (jdk.meta) platforms;