diff --git a/backend/app/main.py b/backend/app/main.py
index 733e9d8ef..f866c6c99 100644
--- a/backend/app/main.py
+++ b/backend/app/main.py
@@ -241,7 +241,8 @@ async def on_printer_status_change(printer_id: int, state: PrinterState):
         f"{state.connected}:{state.state}:{state.progress}:{state.layer_num}:"
         f"{nozzle_temp}:{bed_temp}:{nozzle_2_temp}:{chamber_temp}:"
         f"{state.stg_cur}:{bed_target}:{nozzle_target}:"
-        f"{state.cooling_fan_speed}:{state.big_fan1_speed}:{state.big_fan2_speed}"
+        f"{state.cooling_fan_speed}:{state.big_fan1_speed}:{state.big_fan2_speed}:"
+        f"{state.chamber_light}"
     )
     if _last_status_broadcast.get(printer_id) == status_key:
         return  # No change, skip broadcast
diff --git a/backend/app/services/printer_manager.py b/backend/app/services/printer_manager.py
index 488d0abc9..018738bb9 100644
--- a/backend/app/services/printer_manager.py
+++ b/backend/app/services/printer_manager.py
@@ -504,6 +504,8 @@ def printer_state_to_dict(state: PrinterState, printer_id: int | None = None) ->
         "big_fan1_speed": state.big_fan1_speed,
         "big_fan2_speed": state.big_fan2_speed,
         "heatbreak_fan_speed": state.heatbreak_fan_speed,
+        # Chamber light state
+        "chamber_light": state.chamber_light,
     }
     # Add cover URL if there's an active print and printer_id is provided
     # Include PAUSE/PAUSED states so skip objects modal can show cover
diff --git a/frontend/public/sw.js b/frontend/public/sw.js
index 8566e9730..674403521 100644
--- a/frontend/public/sw.js
+++ b/frontend/public/sw.js
@@ -1,6 +1,6 @@
 // Bambuddy Service Worker
-const CACHE_NAME = 'bambuddy-v22';
-const STATIC_CACHE = 'bambuddy-static-v22';
+const CACHE_NAME = 'bambuddy-v23';
+const STATIC_CACHE = 'bambuddy-static-v23';
 
 // Static assets to cache on install
 const STATIC_ASSETS = [