diff --git a/lib/lago/api/resources/customer.rb b/lib/lago/api/resources/customer.rb
index 46735a2..e448228 100644
--- a/lib/lago/api/resources/customer.rb
+++ b/lib/lago/api/resources/customer.rb
@@ -77,7 +77,7 @@ def whitelist_params(params)
             invoice_custom_section_codes: params[:invoice_custom_section_codes],
             timezone: params[:timezone],
             finalize_zero_amount_invoice: params[:finalize_zero_amount_invoice],
-            skip_invoice_custom_sections: params[:skip_invoice_custom_sections  ],
+            skip_invoice_custom_sections: params[:skip_invoice_custom_sections],
           }
 
           whitelist_billing_configuration(params[:billing_configuration]).tap do |config|
diff --git a/spec/fixtures/api/invoice.json b/spec/fixtures/api/invoice.json
index e5aa132..17f110b 100644
--- a/spec/fixtures/api/invoice.json
+++ b/spec/fixtures/api/invoice.json
@@ -45,11 +45,6 @@
     ],
     "applied_invoice_custom_sections": [
       {
-
-        code: model.code,
-        details: model.details,
-        display_name: model.display_name,
-        created_at: model.created_at.iso8601,
         "lago_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
         "lago_invoice_id": "1a901a90-1a90-1a90-1a90-1a901a901a90",
         "code": "ics_code",