diff --git a/common/lib/azure/core/http/http_request.rb b/common/lib/azure/core/http/http_request.rb
index f66bef7012ca71c3ec782162751203385b7338d5..742445f58804b8303d3fe1e2e60f0b1cad1e06bf 100644
--- a/common/lib/azure/core/http/http_request.rb
+++ b/common/lib/azure/core/http/http_request.rb
@@ -16,6 +16,7 @@ require 'digest/md5'
 require 'base64'
 require 'net/http'
 require 'time'
+require 'tempfile'
 
 require 'azure/core/version'
 require 'azure/core/http/http_response'