Both sides of the legislature voted unanimously to name the day in honor of the slain journalists, the The Baltimore Sun reported.
The five employees, journalists Gerald Fischman, Rob Hiaasen, John McNamara and Wendi Winters, and sales associate Rebecca Smith, were killed on June 28 when alleged gunman Jarrod Ramos entered the newsroom and opened fire.
During the vote, Maryland Delegate Mark Fisher aired his grievances against the press, according to The Sun.
“Freedom of the press is important, including even if as a journalist you want to put out fake news,” Fisher said. “I’m going to vote for this bill because I think you have the right to print fake news.”
Those comments were deemed "inappropriate" by Delegate Kathleen Dumais, who serves as the house majority leader.
President Donald Trump has publicly touted members of the media as "the enemy of the American People," accusing them of putting out fake news.
Last year, Time magazine named the victims of the Capital Gazette shooting as its Person of the Year, as well as slain Saudi journalist Jamal Khashoggi and three other reporters persecuted for their reporting, two of whom worked for Reuters.