diff --git a/build_tests/json_to_yaml/Rsconscript b/build_tests/json_to_yaml/Rsconscript
index 0c3d2fa..f1bba01 100644
--- a/build_tests/json_to_yaml/Rsconscript
+++ b/build_tests/json_to_yaml/Rsconscript
@@ -4,6 +4,7 @@ build do
     require 'yaml'
     env.add_builder(:JsonToYaml) do |params|
       unless @cache.up_to_date?(@target, :JsonToYaml, @sources, @env)
+        print_run_message("JsonToYaml #{@target}", nil)
         @cache.mkdir_p(File.dirname(@target))
         File.open(@target, 'w') do |f|
           f.write(YAML.dump(JSON.load(IO.read(@sources.first))))