diff --git a/homeassistant/components/emulated_hue/hue_api.py b/homeassistant/components/emulated_hue/hue_api.py
index 57a4f18825a..cc63873a1fd 100644
--- a/homeassistant/components/emulated_hue/hue_api.py
+++ b/homeassistant/components/emulated_hue/hue_api.py
@@ -288,6 +288,9 @@ def get_entity_state(config, entity):
             final_brightness = round(min(1.0, level) * 255)
     else:
         final_state, final_brightness = cached_state
+        # Make sure brightness is valid
+        if final_brightness is None:
+            final_brightness = 255 if final_state else 0
 
     return (final_state, final_brightness)