Mark Zuckerberg is taking a stand against his own employees who feel they have the right to scratch out the phrase ‘Black Live Matter’ on the company’s famous signature wall.

In a private memo posted on a company announcement page , Mark addressed the issue head on and says he won’t stand for the 98% white staff at his Menlo Park, California office silencing the speech of others.

“We’ve never had rules around what people can write on our walls,” he said in the post. “We expect everybody to treat each other with respect.”

Check out a copy of the entire message below.

Thank you, Mark.