diff --git a/homeassistant/components/emulated_hue/hue_api.py b/homeassistant/components/emulated_hue/hue_api.py
index 7bba23b4b78..0dd3d212dad 100644
--- a/homeassistant/components/emulated_hue/hue_api.py
+++ b/homeassistant/components/emulated_hue/hue_api.py
@@ -780,6 +780,7 @@ def entity_to_json(config, entity):
         retval["type"] = "On/Off light"
         retval["productname"] = "On/Off light"
         retval["modelid"] = "HASS321"
+        retval["state"].update({HUE_API_STATE_BRI: HUE_API_STATE_BRI_MAX})
 
     return retval
 
diff --git a/tests/components/emulated_hue/test_hue_api.py b/tests/components/emulated_hue/test_hue_api.py
index 95b4374e11e..a23296308f6 100644
--- a/tests/components/emulated_hue/test_hue_api.py
+++ b/tests/components/emulated_hue/test_hue_api.py
@@ -22,6 +22,7 @@ from homeassistant.components import (
 from homeassistant.components.emulated_hue import Config, hue_api
 from homeassistant.components.emulated_hue.hue_api import (
     HUE_API_STATE_BRI,
+    HUE_API_STATE_BRI_MAX,
     HUE_API_STATE_CT,
     HUE_API_STATE_HUE,
     HUE_API_STATE_ON,
@@ -282,6 +283,12 @@ async def test_light_without_brightness_supported(hass_hue, hue_client):
     assert light_without_brightness_json["state"][HUE_API_STATE_ON] is True
     assert light_without_brightness_json["type"] == "On/Off light"
 
+    # BRI required for alexa compat
+    assert (
+        light_without_brightness_json["state"][HUE_API_STATE_BRI]
+        == HUE_API_STATE_BRI_MAX
+    )
+
 
 async def test_light_without_brightness_can_be_turned_off(hass_hue, hue_client):
     """Test that light without brightness can be turned off."""