diff --git a/lib/api_client/client.rb b/lib/api_client/client.rb
index 8e176ed..83a37d0 100644
--- a/lib/api_client/client.rb
+++ b/lib/api_client/client.rb
@@ -34,7 +34,7 @@ module ApiClient::Client
   def self.process_params(request, files)
     options = { query: request.params.clone }
     options[:query].merge!(:servico => request.service_type)
-    options[:query].merge!(:callback => "http://150.165.204.80/v_libras/requests/callback?request_id=#{request.id}")
+    options[:query].merge!(:callback => "http://#{ENV['DOMAIN_NAME']}/v_libras/requests/callback?request_id=#{request.id}")
 
     options[:query].merge!(:video => files[:video].file.to_file)
 
--
libgit2 0.21.2