listContents $location is with double / at the end

[SeniorSupportEngineer]

When I whant to list the contents of "/out" on a sftp server $location is always "/out//".
The path prefixer is set to "/out". And then I list the contents of path "".
So $location = $this->prefixer->prefixPath(rtrim($path, '/')) . '/'; results in "/out//"
So the $filename will be "/filename.txt" and not "filename.txt"

Can this be fixed please?