The 32-year-old has been a starter for most of the season, but he hasn't pitched in a game since July 8 after struggling in the rotation. He is 5-9 with a 7.38 ERA this season.
Wilson, who began the year with the Orioles, was sent down on July 3 after allowing eight runs in a start the previous day. The righty has a 5.22 ERA in 81 innings with Baltimore.
Wilson made two starts with Norfolk, posting a 10.13 ERA. Wilson, who last pitched on Wednesday, will provide a long-relief option for the Orioles after they used Odrisamer Despaigne for 3 2/3 innings on Friday.
Ryan Baillargeon is a reporter for MLB.com based in Baltimore. This story was not subject to the approval of Major League Baseball or its clubs.