diff --git a/docs/content/ftp.md b/docs/content/ftp.md
index 0714e2bb2..68ccffd1f 100644
--- a/docs/content/ftp.md
+++ b/docs/content/ftp.md
@@ -10,6 +10,10 @@ FTP is the File Transfer Protocol. FTP support is provided using the
 [github.com/jlaffaye/ftp](https://godoc.org/github.com/jlaffaye/ftp)
 package.
 
+Paths are specified as `remote:path`. If the path does not begin with
+a `/` it is relative to the home directory of the user.  An empty path
+`remote:` refers to the user's home directory.
+
 Here is an example of making an FTP configuration.  First run
 
     rclone config