Font size NOT changing through .vimrc but can inside vim

Question

I can change the font size with set guifont=FixedsysTTF Monospace:h13 inside Vim and works perfectly.

However when I put this inside ~/.vimrc it stays the same font size no matter what size I set it to, and it's really small.

Here is the screenshot of the problem:

Answer 1

I didn't catch a space in the font name. It must be escaped:

set guifont=FixedsysTTF\ Monospace:h13