[BUGFIX] false document media type

[short description]:

__Tasks:__

- [ ] test coverage
- [ ] gather feedback for my changes
- [ ] submit changes to the documentation
- [ ] ... <add your own tasks>


__Informations:__

| Q             | A
| ------------- | ---
| Tests pass?   | none
| Fixed tickets | #103
| BC Breaks     | 
| Doc           | none