diff --git a/en_US.ISO8859-1/books/handbook/security/chapter.xml b/en_US.ISO8859-1/books/handbook/security/chapter.xml
index 0565002a01..b04e824f28 100644
--- a/en_US.ISO8859-1/books/handbook/security/chapter.xml
+++ b/en_US.ISO8859-1/books/handbook/security/chapter.xml
@@ -2538,7 +2538,10 @@ COPYRIGHT            100% |*****************************|  4735
 	first argument and the destination to copy to is the second.
 	Since the file is fetched over the network, one or more of the
 	file arguments takes the form
-	<option>user@host:&lt;path_to_remote_file&gt;</option>.</para>
+	<option>user@host:&lt;path_to_remote_file&gt;</option>.  Be
+	aware when copying directories recursively that
+	<command>scp</command> uses <option>-r</option>, whereas
+	<command>cp</command> uses <option>-R</option>.</para>
 
       <para>To open an interactive session for copying files, use
 	<command>sftp</command>.  Refer to &man.sftp.1; for a list of