Aubameyang, 28, is being heavily linked with a switch in the new year, despite scoring 17 goals in his opening 19 appearances for Dortmund this season.
The striker was suspended by Dortmund for ‘disciplinary reasons’ earlier this month which fueled rumours of an imminent exit at the Westfalenstadion.
However, Aubameyang’s brother, Willy, told Bild: ‘The thing is over now. He just wants to win and score many goals. He is still completely in Dortmund with his head.’
Asked about whether his brother has the January transfer window on his mind, he added: ‘We’re not talking about that.’
Dortmund CEO Hans-Joachim Watzke defended Aubameyang following a wave of criticism in the aftermath of his red card versus Schalke.
‘To be honest, I don’t like the way Pierre-Emerick Aubameyang was treated in previous days,’ Watzke said on Sunday.
‘We had some good talks last week and [against Schalke] I’ve seen an Aubameyang who gave his very best, his absolute very best.
‘Maybe this was the reason for his red card because he wanted to show that he’s completely back. I’ve never questioned that.
‘We had a talk last week and we clearly said that he’s completely with us and I’m happy about that.
‘In plain language, how often has Aubameyang saved our asses with his goals?’