Cant figure out how to get the rule into the line correctly

[!llum!n4t3]

./hashcat-cli64.app -m 0 -a 1 hash.txt wordList -r best64.rule

is an example of one of the lines i've input into terminal. ive read over the wiki a few times looking for what is wrong and ive tried a lot of different combinations but this is the response i get every time

Added hashes from file hash.txt: 1 (1 salts)
Activating quick-digest mode for single-hash
best64: No such file or directory

any help would be greatly appreciated