What should you do?

Your answer is correct because the German traffic rules require you to yield to pedestrians at a zebra crossing. When you approach a pedestrian crossing and see people waiting to cross or already stepping onto the crossing, you must stop and allow them to cross safely.

You cannot continue driving just because the pedestrians are on the far side or because there seems to be enough time; once pedestrians signal their intention to cross or are already on the crossing, you have to wait. This ensures pedestrian safety and follows the right-of-way regulations at marked pedestrian crossings.

In the future, always slow down and be prepared to stop when you see a zebra crossing and pedestrians nearby, regardless of which side they are on.