diff --git a/lib/puppet/transaction/event.rb b/lib/puppet/transaction/event.rb
index cd695cff8..d3f25b71c 100644
--- a/lib/puppet/transaction/event.rb
+++ b/lib/puppet/transaction/event.rb
@@ -1,66 +1,66 @@
 require 'puppet/transaction'
 require 'puppet/util/tagging'
 require 'puppet/util/logging'
 
 # A simple struct for storing what happens on the system.
 class Puppet::Transaction::Event
   include Puppet::Util::Tagging
   include Puppet::Util::Logging
 
   ATTRIBUTES = [:name, :resource, :property, :previous_value, :desired_value, :historical_value, :status, :message, :file, :line, :source_description, :audited]
   YAML_ATTRIBUTES = %w{@audited @property @previous_value @desired_value @historical_value @message @name @status @time}
   attr_accessor *ATTRIBUTES
   attr_writer :tags
   attr_accessor :time
   attr_reader :default_log_level
 
   EVENT_STATUSES = %w{noop success failure audit}
 
   def initialize(options = {})
     @audited = false
     options.each { |attr, value| send(attr.to_s + "=", value) }
 
     @time = Time.now
   end
 
   def property=(prop)
     @property = prop.to_s
   end
 
   def resource=(res)
     if res.respond_to?(:[]) and level = res[:loglevel]
       @default_log_level = level
     end
     @resource = res.to_s
   end
 
   def send_log
     super(log_level, message)
   end
 
   def status=(value)
     raise ArgumentError, "Event status can only be #{EVENT_STATUSES.join(', ')}" unless EVENT_STATUSES.include?(value)
     @status = value
   end
 
   def to_s
     message
   end
 
   def to_yaml_properties
-    (YAML_ATTRIBUTES & instance_variables).sort
+    (YAML_ATTRIBUTES.map {|ya| ya.to_s} & instance_variables.map{|iv| iv.to_s}).sort
   end
 
   private
 
   # If it's a failure, use 'err', else use either the resource's log level (if available)
   # or 'notice'.
   def log_level
     status == "failure" ? :err : (@default_log_level || :notice)
   end
 
   # Used by the Logging module
   def log_source
     source_description || property || resource
   end
 end