Fixed T26055

Summary: Signed-off-by: Ralf Floca <r.floca@dkfz-heidelberg.de>

Test Plan: Checklist testing

Reviewers: MITK Reviewer Group I, kislinsk

Reviewed By: MITK Reviewer Group I, kislinsk

Maniphest Tasks: T26055

Differential Revision: https://phabricator.mitk.org/D188