diff --git a/lib/fluent/plugin/filter_parse_audit_log.rb b/lib/fluent/plugin/filter_parse_audit_log.rb
index 95d8ca6..bed78ad 100644
--- a/lib/fluent/plugin/filter_parse_audit_log.rb
+++ b/lib/fluent/plugin/filter_parse_audit_log.rb
@@ -6,11 +6,14 @@ class FluentParseAuditLogFilter < Fluent::Filter
 
   config_param :key, :string, default: 'message'
   config_param :flatten, :bool, default: false
+  config_param :unhex, :bool, default: false
+  config_param :unhex_keys, :array, default: ['*'], value_type: :string 
+  config_param :unhex_min_length, :integer, default: 8
 
   def filter(tag, time, record)
     line = record[@key]
     return record unless line
-    AuditLogParser.parse_line(line, flatten: @flatten)
+    AuditLogParser.parse_line(line, flatten: @flatten, unhex: @unhex, unhex_keys: @unhex_keys, unhex_min_length: @unhex_min_length)
   rescue => e
     log.warn "failed to parse a audit log: #{line}", error_class: e.class, error: e.message
     log.warn_backtrace