diff --git a/app/controllers/readings_controller.rb b/app/controllers/readings_controller.rb
index de4259c..854af12 100644
--- a/app/controllers/readings_controller.rb
+++ b/app/controllers/readings_controller.rb
@@ -15,7 +15,7 @@ class ReadingsController < ActionController::API
       reading = raspberry.readings.build reading_params
       reading.id = params[:transaction_uuid]
       reading.signature = request.headers[:'X-Signature']
-      reading.transaction = request.raw_post
+      reading.raw_transaction = request.raw_post
       reading.verified = reading.verify
 
       params[:arduinos]&.each do |a|
diff --git a/db/migrate/20220319153246_rename_transaction.rb b/db/migrate/20220319153246_rename_transaction.rb
new file mode 100644
index 0000000..ead315f
--- /dev/null
+++ b/db/migrate/20220319153246_rename_transaction.rb
@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+# Transaction es un nombre reservado por Rails
+class RenameTransaction < ActiveRecord::Migration[6.1]
+  def change
+    rename_column :readings, :transaction, :raw_transaction
+  end
+end