Bug in Jetpack (subscription widget)

Could you please add:

property=’stylesheet’

to:

<link rel=’stylesheet’ id=’jetpack-subscriptions-group-css’ href=”wp-content/plugins/bwp-minify/min/?f=io/wp-content/plugins/jetpack/modules/subscriptions/subscriptions.css” type=’text/css’ media=’all’/>

Because in case it’s not in the header (website optimizations like moving stuff at the end, etc.) w3c validator complains that:

“Element link is missing required attribute property”

Thanks.