Form 1120 Didn't Have Signature

I used the TurboTax Business 2021 product and submitted the return without diligently checking to see if everything was in order. The form didn't have the signature of the officer (me) but instead had the empty form that was meant to be signed. Is there a way I can change this  and amend it to the return? What steps should I take to make sure the IRS will accept it as valid?

 

Thanks!