diff --git a/lib/rb/spec/http_client_spec.rb b/lib/rb/spec/http_client_spec.rb
index 959880c..30561ab 100644
--- a/lib/rb/spec/http_client_spec.rb
+++ b/lib/rb/spec/http_client_spec.rb
@@ -39,7 +39,11 @@
       Net::HTTP.should_receive(:new).with("my.domain.com", 80).and_return do
         mock("Net::HTTP").tee do |http|
           http.should_receive(:use_ssl=).with(false)
-          http.should_receive(:post).with("/path/to/service?param=value", "a test frame", {"Content-Type"=>"application/x-thrift"}).and_return([nil, "data"])
+          http.should_receive(:post).with("/path/to/service?param=value", "a test frame", {"Content-Type"=>"application/x-thrift"}).and_return do
+            mock("Net::HTTPOK").tee do |response|
+              response.should_receive(:body).and_return "data"
+            end
+          end
         end
       end
       @client.flush
@@ -55,7 +59,11 @@
       Net::HTTP.should_receive(:new).with("my.domain.com", 80).and_return do
         mock("Net::HTTP").tee do |http|
           http.should_receive(:use_ssl=).with(false)
-          http.should_receive(:post).with("/path/to/service?param=value", "test", headers).and_return([nil, "data"])
+          http.should_receive(:post).with("/path/to/service?param=value", "test", headers).and_return do
+            mock("Net::HTTPOK").tee do |response|
+              response.should_receive(:body).and_return "data"
+            end
+          end
         end
       end
       @client.flush