diff --git a/reference/ftp/functions/ftp-connect.xml b/reference/ftp/functions/ftp-connect.xml
index 00233506b7..7194bcb92c 100644
--- a/reference/ftp/functions/ftp-connect.xml
+++ b/reference/ftp/functions/ftp-connect.xml
@@ -44,7 +44,7 @@
      <term><parameter>timeout</parameter></term>
      <listitem>
       <para>
-       This parameter specifies the timeout for all subsequent network operations.
+       This parameter specifies the timeout in seconds for all subsequent network operations.
        If omitted, the default value is 90 seconds. The timeout can be changed and
        queried at any time with <function>ftp_set_option</function> and
        <function>ftp_get_option</function>.