fix dict access error

Signed-off-by: Sebastian Schüpbach <sebastian.schuepbach@unibas.ch>
2 jobs for master in 1 minute and 43 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed test #71633
mbr

00:00:30

 
  Publish
passed build-latest-image #71634
mbr

00:01:13