Alt tag on logo image

Hi, in media library my logo have alt attribute, but on site this alt description not appear.
How without css and code modification can i add this alt attrib

![1_sydney|667x370]

Hello there,

By default the logo’s alt tag will show the site’s title. Here is mine:

Do you have SEO-related plugin enabled? If so, try temporarily disabling it. And see how it resolves the issue.

Regards,
Kharis