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-rw-r--r--lib/chef/cookbook/synchronizer.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/chef/cookbook/synchronizer.rb b/lib/chef/cookbook/synchronizer.rb
index b1fa1b436d..8c87ababb6 100644
--- a/lib/chef/cookbook/synchronizer.rb
+++ b/lib/chef/cookbook/synchronizer.rb
@@ -16,7 +16,7 @@
require_relative "../client"
require_relative "../util/threaded_job_queue"
require_relative "../server_api"
-require "singleton"
+require "singleton" unless defined?(Singleton)
require_relative "../dist"
class Chef