The German got nine assists for Arsene Wenger's side last season but only scored five goals during the campaign.
Ahead of this summer's World Cup in Brazil, Ozil said it is something he needs to improve.
Ozil told Voetbal Primeur: "It's true that I haven't been a real danger, and I demand it of myself. I am working hard at it, and although I did not do well in some situations, I'm working on finding a solution."
The midfielder enjoyed a good start to life in North London before injuries and a loss of form contributed to a frustrating final few months of the campaign.