diff --git a/lib/plugin/instance.rb b/lib/plugin/instance.rb
index d17e801b229..0bc54a09c84 100644
--- a/lib/plugin/instance.rb
+++ b/lib/plugin/instance.rb
@@ -571,7 +571,7 @@ JS
         DiscoursePluginRegistry.register_locale(locale, opts)
         Rails.configuration.assets.precompile << "locales/#{locale}.js"
       else
-        puts "Invalid locale! #{opts.inspect}"
+        Rails.logger.error "Invalid locale! #{opts.inspect}"
       end
     end
   end