diff --git a/docs/content/ftp.md b/docs/content/ftp.md
index 60e9f1d7b..70c4f4ad6 100644
--- a/docs/content/ftp.md
+++ b/docs/content/ftp.md
@@ -9,7 +9,7 @@ FTP is the File Transfer Protocol. Rclone FTP support is provided using the
 [github.com/jlaffaye/ftp](https://godoc.org/github.com/jlaffaye/ftp)
 package.
 
-[Limitations of Rclone's FTP backend](#Limitations)
+[Limitations of Rclone's FTP backend](#limitations)
 
 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
@@ -266,7 +266,13 @@ See: the [encoding section in the overview](/overview/#encoding) for more info.
 
 {{< rem autogenerated options stop >}}
 
-### Limitations ###
+### Limitations
+
+FTP servers acting as rclone remotes must support `passive` mode.
+The mode cannot be configured as `passive` is the only supported one.
+Rclone's FTP implementation is not compatible with `active` mode
+as [the library it uses doesn't support it](https://github.com/jlaffaye/ftp/issues/29).
+This will likely never be supported due to security concerns.
 
 Modified times are not supported. Times you see on the FTP server
 through rclone are those of upload.
@@ -295,10 +301,6 @@ at present.
 
 The `ftp_proxy` environment variable is not currently supported.
 
-FTP servers acting as rclone remotes must support 'passive'
-mode. Rclone's FTP implementation is not compatible with 'active'
-mode.
-
 #### Restricted filename characters
 
 In addition to the [default restricted characters set](/overview/#restricted-characters)