diff --git a/lib/beaker/options/hosts_file_parser.rb b/lib/beaker/options/hosts_file_parser.rb
index 9cf271ba0..364f33e4f 100644
--- a/lib/beaker/options/hosts_file_parser.rb
+++ b/lib/beaker/options/hosts_file_parser.rb
@@ -4,6 +4,7 @@ module Options
     module HostsFileParser
       PERMITTED_YAML_CLASSES = [
         'Beaker',
+        'Beaker::DSL::TestTagging::PlatformTagConfiner',
         'Beaker::Logger',
         'Beaker::Options::OptionsHash',
         'Beaker::Platform',