The 24-year-old has kept five clean sheets from 10 appearances and has been on the losing side just once for Kilmarnock this season.
Now the Austrian has his sights set on a return to Vicarage Road in the summer to play for Javi Gracia.
He said: "I'm looking forward to getting back to Watford and working with him again.
"I speak to Iñigo Arteaga the goalkeeping coach after every game. I've been speaking to Andy Scott recently and I'm also in contact with Filippo Giraldi.
"I've been speaking to them all the time really, especially the goalkeeping coach, I speak to him at least once a week. They're happy how things are going and they're just happy that I'm developing in the right way.
"The plan was to go out this season, play as many games as possible, come back and then push on from there and the plan is definitely to come back to Watford in the summer and be a Watford player again."
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