The Walt Disney Company is changing employees' hotel-room entry protocol at some of its properties at Orlando's Walt Disney World Resort, according to the non-Disney-affiliated WDW News Today news blog.

Disney is replacing its "Do Not Disturb" signs with "Room Occupied" markers and is informing guests that employees will enter guestrooms at least once a day, WDW News Today wrote.

The Grand Floridian, Polynesian and Contemporary Resorts, all of which are closest to Disney World's Monorail, are the first three hotels where the policy change will take place, though other Disney World hotels are expected to have the signs switched out within the next few weeks.

Representatives at Walt Disney Co. didn't immediately respond to a request for comment from Travel Weekly.

WDW News Today said the change was most likely spurred by an Oct. 1 mass shooting on the Las Vegas Strip, in which a Mandalay Bay Resort and Casino guest brought dozens of firearms to his rooms and opened fire from his guestroom window, killing 58 concert-goers below.