how to svn merge of filename with spaces ?

Hi All

We have SVN 1.6.
We like to perform a svn merge on a file where its filename has spaces.
eg
Roaming Apple.txt

Is this syntax correct below to svn merge to a working copy ?
If not, what should it be ?

svn merge -c 12345 "https://mytext.abb.com/app/path/to/Roaming Apple.txt" .

using quotes?

Right now, we get error
svn: Unable to parse URL '/svn/app/!svn/bc/12576/path/to/Roaming Apple.txt
using
svn merge -c 12345 https://mytext.abb.com/app/path/to/Roaming Apple.txt .

Any help is appreciated.
Thank you
Received on 2015-07-07 19:58:49 CEST