request_options.rb in mercadopago-sdk-2.0.3

- old
+ new

@@ -33,10 +33,10 @@
 
       headers['x-corporation-id'] = @corporation_id unless @corporation_id.nil?
       headers['x-integrator-id'] = @integrator_id unless @integrator_id.nil?
       headers['x-platform-id'] = @platform_id unless @platform_id.nil?
 
-      headers.merge(@custom_headers) unless @custom_headers.nil?
+      headers.merge!(@custom_headers) unless @custom_headers.nil?
 
       headers
     end
 
     def access_token=(value)