diff --git a/modules/nixos/homeassistant/automations/default.nix b/modules/nixos/homeassistant/automations/default.nix
index 3f74b69..9292c16 100644
--- a/modules/nixos/homeassistant/automations/default.nix
+++ b/modules/nixos/homeassistant/automations/default.nix
@@ -129,6 +129,7 @@ in
               alias = mkOpt types.str "" "Alias/Friendly Name";
               description = mkOpt types.str "" "Automation Description";
               mqttDeviceId = mkOpt types.str "" "mqtt device id of the sitch";
+              deviceAction = mkOpt types.str "" "device action";
               lightEntityId = mkOpt types.str "" "home assistant entity id for the lights";
               transitionTime = mkOpt types.int 2 "light transition time in seconds";
               brightnessPercent = mkOpt types.int 100 "brightness percentage when turned on";