Exhibit 10.51

AMENDMENT TO

WASHINGTON REAL ESTATE INVESTMENT TRUST

SHORT-TERM INCENTIVE PLAN

(Effective January 1, 2014)

The Washington Real Estate Investment Trust Short-Term Incentive Plan (the “Plan”) is hereby amended as follows:

The phrase “(or if such January 1 is not a trading day, the first trading day preceding such January 1)” in Section 4.3(c) of the Plan is hereby replaced with the following phrase: “(or if such January 1 is not a trading day, the first trading day after such January 1)”

This amendment shall be effective as of January 1, 2014.

	WASHINGTON REAL ESTATE INVESTMENT TRUST
	By:		/s/ Laura M. Franklin
	Executive Vice President - Accounting and Administration
	July 31, 2014