EXHIBIT 99.1

JOINT FILING AGREEMENT

The undersigned hereby agree that the statement on Schedule 13D with respect to the Common stock, $0.01 par value, of Potbelly Corporation dated as of the date hereof is, and any further amendments thereto signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(f) under the Securities Exchange Act of 1934, as amended.

Dated: November 16, 2017

PRIVET FUND LP
	By: Privet Fund Management LLC, Its Managing Partner
By:	/s/ Ryan Levenson
	Name: Ryan Levenson
	Title: Sole Manager
PRIVET FUND MANAGEMENT LLC
By:	/s/ Ryan Levenson
	Name: Ryan Levenson
	Title: Sole Manager

/s/ Ryan Levenson

Ryan Levenson