diff --git a/reference/ftp/functions/ftp-ssl-connect.xml b/reference/ftp/functions/ftp-ssl-connect.xml
index ca7c9855fc..501d3ced64 100644
--- a/reference/ftp/functions/ftp-ssl-connect.xml
+++ b/reference/ftp/functions/ftp-ssl-connect.xml
@@ -27,6 +27,12 @@
     function available on Windows you must compile your own PHP binaries.
    </para>
   </note>
+  <note>
+   <para>
+    <function>ftp_ssl_connect</function> is not intended for use with sFTP.
+    To use sFTP with PHP, please see <function>ssh2_sftp</function>.
+   </para>
+  </note>
  </refsect1>
  <refsect1 role="parameters">
   &reftitle.parameters;