diff --git a/app/controllers/contributions/donations_controller.rb b/app/controllers/contributions/donations_controller.rb
index 404f203..b9f46c4 100644
--- a/app/controllers/contributions/donations_controller.rb
+++ b/app/controllers/contributions/donations_controller.rb
@@ -28,6 +28,7 @@ class Contributions::DonationsController < ApplicationController
     if params[:currency] == "sats"
       fiat_amount = nil
       fiat_currency = nil
+      amount_sats = params[:amount]
     else
       fiat_amount = params[:amount].to_i
       fiat_currency = params[:currency]