diff --git a/tpmcqr_service/api/utils.py b/tpmcqr_service/api/utils.py
index 011da81..02154c0 100644
--- a/tpmcqr_service/api/utils.py
+++ b/tpmcqr_service/api/utils.py
@@ -171,10 +171,10 @@ def calcula_distancias_parada(redis_id, parada_id):
 
 def estima_llegada(parada_distance, expedicion):
     ts = int(time.time())
-    data_keys = ['trip_traveled', 'ppu', 'trip_lat', 'trip_lon', 'trip_pos', 'ts']
+    data_keys = ['trip_traveled', 'bus_id', 'trip_lat', 'trip_lon', 'trip_pos', 'ts']
     trip_info = dict(zip(data_keys, expedicion))
-    trip_info['bus_id'] = xxhash.xxh32(data_keys['ppu'], seed=data_keys['id_linea']).hexdigest()
-    
+    trip_info['bus_id'] = xxhash.xxh32(trip_info['bus_id'], seed=parada_distance).hexdigest()
+
     trip_info['drift'] = int(trip_info['ts']) - ts
     trip_info['trip_distance'] = parada_distance - int(trip_info['trip_traveled'])
     estimator = int(trip_info['trip_distance'] / 5) # 18 Km/h promedio -> 5 m/s