How to deal with spaces in path?

[sciamano]

for example if i want to handle some chromium files, then a list entry
m f .config/chromium/Default/Cookies chromium/Default/Cookies
works totally fine, but how to handle a file with spaces in its name, e.g. Network Action Predictor?
I have tried
m f .config/chromium/Default/Network Action Predictor chromium/Default/Network Action Predictor
and
m f ".config/chromium/Default/Network Action Predictor" "chromium/Default/Network Action Predictor"
at the moment this entries in the list will be just silently ignored.