diff --git a/src/cloud/common/CloudClient.rb b/src/cloud/common/CloudClient.rb
index 69c7845e4f..e18549fecd 100644
--- a/src/cloud/common/CloudClient.rb
+++ b/src/cloud/common/CloudClient.rb
@@ -18,6 +18,7 @@
 require 'rubygems'
 require 'uri'
 
+require 'digest'
 require 'net/https'
 
 begin