diff --git a/lib/metanorma/unece/processor.rb b/lib/metanorma/unece/processor.rb
index 53a51c8..37bbc32 100644
--- a/lib/metanorma/unece/processor.rb
+++ b/lib/metanorma/unece/processor.rb
@@ -21,8 +21,8 @@ def version
         "Metanorma::Unece #{Metanorma::Unece::VERSION}"
       end
 
-      def input_to_isodoc(file)
-        Metanorma::Input::Asciidoc.new.process(file, @asciidoctor_backend)
+      def input_to_isodoc(file, filename)
+        Metanorma::Input::Asciidoc.new.process(file, filename, @asciidoctor_backend)
       end
 
       def output(isodoc_node, outname, format, options={})