diff --git a/sgx-bwmsgsv2.rb b/sgx-bwmsgsv2.rb
index ad1b531bcb9a840bcc152e9b7f3df51832e55b30..97a4572d2e973bc46e3e41719150454c39b0c3f5 100755
--- a/sgx-bwmsgsv2.rb
+++ b/sgx-bwmsgsv2.rb
@@ -23,6 +23,7 @@ require 'blather/client/dsl'
 require 'em-hiredis'
 require 'em-http-request'
 require 'json'
+require 'multibases'
 require 'multihashes'
 require 'securerandom'
 require "sentry-ruby"