how to revert font to parent's default?

Hi everyone,

Either this is deeply buried somewhere or I keep asking the wrong question, but anyway here’s my issue:

In Writer, how can I revert the font style of a child paragraph style to that of its parent?

In other words, supose I do the following:

  1. Set Heading Free Sans
  2. Set Heading 1 to Lucida

Now, if I change heading’s font, heading 1 is not affected because the font overrides its parent’s.

So I want to put Heading 1 back to using the parent’s font.

I tried going to styles → modify and erase the font name and click OK but it seems to produce no result.
Is there any way of acheiving this? Thanks in advance.