Update fund_sources_controller.rb

Author: mrtass

app/controllers/private/fund_sources_controller.rb

@@ -14,7 +14,7 @@ def create
     def update
       account = 
 current_user.accounts.with_currency(fund_source.currency).first
-      account.update default_withdraw_fund_source: params[:id]
+      account.update default_withdraw_fund_source_id: params[:id]
 
       head :ok
     end