doctype rendering strangely

Hey guys, 

I have a spike project thats rending out the doctype in a very strange way and I cant work out why. 

Layout.html first few lines:
```
<!DOCTYPE html>
<html>
```

Strange output string rending out as follows:
```
&lt;!DOCTYPE html&gt;
<html>
```

```
❯ spike -v
2.3.0
```
```
❯ node -v
v8.14.0
```

Any help would be great. Thanks. 
Luke