Social bed and breakfast startup Airbnb has secured a long-rumored giant round of $117 million in funding, according to an SEC Form D issued today.

It’s unclear exactly who invested in the new round, however, billionaire Peter Thiel may have invested a large chunk of change in Airbnb as VentureBeat previously reported. The new funding could boost Airbnb’s valuation to more than $2 billion. (The company’s last big round was $112 million in 2011, which put it into the billion dollar valuation club.)