Discovery Group I SC 13D/A Bravo Brio Restaurant Group, Inc.

EXHIBIT 2

JOINT FILING AGREEMENT

The undersigned hereby agree to the joint filing of the Amendment No. 3 to Schedule 13D to which this Agreement is attached.

Dated:  March 31, 2014

DISCOVERY GROUP I, LLC, for itself and as general partner of DISCOVERY EQUITY PARTNERS, L.P.
By:	Michael R. Murphy*
	Michael R. Murphy
	Managing Member

Daniel J. Donoghue*

Daniel J. Donoghue

Michael R. Murphy*

Michael R. Murphy

*By:	/s/ Mark Buckley
	Mark Buckley
	Attorney-in-Fact for Daniel J. Donoghue
	Attorney-in-Fact for Michael R. Murphy