diff --git a/sgx-bwmsgsv2.rb b/sgx-bwmsgsv2.rb
index f5a586942a734952f83769f9f8c5a78f46a1a401..9ad0a73ed8a812f746bba6a05a7da8cb77128316 100755
--- a/sgx-bwmsgsv2.rb
+++ b/sgx-bwmsgsv2.rb
@@ -19,6 +19,7 @@
 # You should have received a copy of the GNU Affero General Public License along
 # with sgx-bwmsgsv2.  If not, see <http://www.gnu.org/licenses/>.
 
+require 'delegate'
 require 'blather/client/dsl'
 require 'em-hiredis'
 require 'em-http-request'