diff --git a/src/Composer/Command/ArchiveCommand.php b/src/Composer/Command/ArchiveCommand.php
index acf72c548..a6372bdaa 100644
--- a/src/Composer/Command/ArchiveCommand.php
+++ b/src/Composer/Command/ArchiveCommand.php
@@ -61,7 +61,7 @@ The <info>archive</info> command creates an archive of the specified format
 containing the files and directories of the Composer project or the specified
 package in the specified version and writes it to the specified directory.
 
-<info>php composer.phar archive [--format=zip] [--dir=/foo] [package [version]]</info>
+<info>php composer.phar archive [--format=zip] [--dir=/foo] [--file=filename] [package [version]]</info>
 
 Read more at https://getcomposer.org/doc/03-cli.md#archive
 EOT