diff --git a/app/models/dunlop/source_file_uploader.rb b/app/models/dunlop/source_file_uploader.rb
index 39c3356..c61a0b7 100644
--- a/app/models/dunlop/source_file_uploader.rb
+++ b/app/models/dunlop/source_file_uploader.rb
@@ -20,4 +20,8 @@ if defined?(CarrierWave)
       File.basename(path.to_s)
     end
   end
+else
+  # provide empty one. Still under investigation, but there seems to be a strict provision requirement in ruby 2.7 and or rails 6
+  class Dunlop::SourceFileUploader
+  end
 end