The team said Friday that the new money will guarantee “crucial” features such as five massive pivoting glass doors. The Vikings say their contribution now stands at $525.6 million, a little more than half of the roughly billion-dollar project. The rest is being borne by taxpayers.

The chairwoman of the authority overseeing the stadium construction, Michelle Kelm-Hagen, said the extra money helps solve a budget gap.

The new stadium is due to open for the 2016 season. The Vikings are playing outdoors at the University of Minnesota until then.