diff --git a/spec/vmfloaty/pooler_spec.rb b/spec/vmfloaty/pooler_spec.rb
index 8fe7545..9d46a80 100644
--- a/spec/vmfloaty/pooler_spec.rb
+++ b/spec/vmfloaty/pooler_spec.rb
@@ -82,7 +82,7 @@ describe Pooler do
 
     it "modifies the TTL of a vm" do
       stub_request(:put, "#{@vmpooler_url}/vm/fq6qlpjlsskycq6").
-        with(:body => {"lifetime"=>"12"},
+        with(:body => {"{\"lifetime\":12}"=>true},
              :headers => {'Accept'=>'*/*', 'Accept-Encoding'=>'gzip;q=1.0,deflate;q=0.6,identity;q=0.3', 'Content-Type'=>'application/x-www-form-urlencoded', 'User-Agent'=>'Faraday v0.9.1', 'X-Auth-Token'=>'mytokenfile'}).
         to_return(:status => 200, :body => @modify_response_body_success, :headers => {})