The US Securities and Exchange Commission (SEC) said that Nvidia Corporation (NVDA.O) has agreed to pay $5.5 million to settle civil claims that it failed to properly disclose the impact of cryptomining on its gaming business.

The SEC claimed in a statement and charging order that Nvidia failed to disclose that cryptomining constituted a “substantial factor” of revenue growth from sales of gaming chips in back-to-back quarters in fiscal 2018.

The company agreed to pay a $5.5 million civil penalty without admitting or denying the SEC’s allegations. Nvidia’s representative in Santa Clara, California, declined to comment.