### Discussed in https://github.com/quarto-dev/quarto-cli/discussions/2498

<div type='discussions-op-text'>

<sup>Originally posted by **cbrnr** September 19, 2022</sup>
I have a website project and I'm trying to set the default engine to `knitr`. I tried adding this to my `_quarto.yml`:

```
engine:
  knitr
```

However, this doesn't seem to have any effect, because all of my sub-documents still use the Jupyter engine.</div>
cscheid
2022-09-19T15:56:44Z
cscheid
bug yaml-validation
v1.2
closed
YAML parse bug
https://github.com/quarto-dev/quarto-cli/issues/2502