diff --git a/main.py b/main.py
index dc3160d..489832e 100644
--- a/main.py
+++ b/main.py
@@ -225,7 +225,7 @@ def get_pu_status():
     }
     logging.info(f"[PU STATUS] {states}")
 
-    active_PUs = [pu for pu, status in states.items() if status != 'OFF']
+    active_PUs = [index + 1 for index, (pu, status) in enumerate(states.items()) if status != 'Offline']
     logging.info(f"[ACTIVE PU] {active_PUs}")
 
     return JSONResponse(content=states)