diff --git a/app/controllers/readings_controller.rb b/app/controllers/readings_controller.rb
index 315998a..b0c0f42 100644
--- a/app/controllers/readings_controller.rb
+++ b/app/controllers/readings_controller.rb
@@ -40,8 +40,7 @@ class ReadingsController < ActionController::API
 
   # Procesa la transacción
   def reading_params
-    @reading_params ||= params.permit(:controller_id,
-                                      :timestamp,
+    @reading_params ||= params.permit(:timestamp,
                                       :error_code,
                                       :battery_status,
                                       :sample,