diff --git a/nixos/modules/services/misc/zigbee2mqtt.nix b/nixos/modules/services/misc/zigbee2mqtt.nix
index 94b68a13beac..ff6d595e5a6e 100644
--- a/nixos/modules/services/misc/zigbee2mqtt.nix
+++ b/nixos/modules/services/misc/zigbee2mqtt.nix
@@ -79,6 +79,7 @@ in
       serviceConfig = {
         ExecStart = "${cfg.package}/bin/zigbee2mqtt";
         User = "zigbee2mqtt";
+        Group = "zigbee2mqtt";
         WorkingDirectory = cfg.dataDir;
         Restart = "on-failure";