On 31 January 2014, Jojić signed a four-and-a-half-year contract with Borussia Dortmund, for a transfer fee believed to be around €2.5 million. He made his first appearance for the club on 15 February 2014, coming on as a 67th-minute substitute in a home league fixture against Eintracht Frankfurt. After just 17 seconds of action, Jojić scored with his first touch, a tap in after Kevin Großkreutz's shot was parried, to make the score 4–0. This was the fastest goal ever scored by a Bundesliga debutant, though four seconds too slow to be the fastest goal ever scored by a substitute; a record held by Uwe Wassmer.