diff --git a/lib/puppetx/augeasproviders_grub/util.rb b/lib/puppetx/augeasproviders_grub/util.rb
index 6aa5156..784a5cb 100644
--- a/lib/puppetx/augeasproviders_grub/util.rb
+++ b/lib/puppetx/augeasproviders_grub/util.rb
@@ -152,7 +152,9 @@ def self.grub2_cfg_paths
         valid_paths = paths.map do |path|
           begin
             real_path = File.realpath(path)
-            real_path if (File.readable?(real_path) && !File.directory?(real_path))
+            real_path if (File.readable?(real_path) && !File.directory?(real_path)) &&
+               # Exclude stub files which include main config (e.g. Debian OS family)
+               (File.foreach(real_path).grep(/^configfile /).none?)
           rescue Errno::ENOENT
             nil
           end