Why does this rsnapshot exclude not work?

"Turning rsync verbosity way up shows the problem:

rsync_short_args -avvv

Output:

[client] add_rule(-s ""SKIPTHIS/"")

Whereas when I was copy-pasting into the shell, the shell was consuming the quotes and rsync said:

[client] add_rule(-s SKIPTHIS/)

Changing the exclude rule in my config file to:

exclude SKIPTHIS/**

works."