diff --git a/phpBB/download/file.php b/phpBB/download/file.php
index 8643ae9e28..939dbe81f7 100644
--- a/phpBB/download/file.php
+++ b/phpBB/download/file.php
@@ -387,7 +387,7 @@ else
 		}
 
 		$compress->add_custom_file("{$phpbb_root_path}files/{$attach['physical_filename']}", "{$prefix}{$attach['real_filename']}");
-		$file_added++;
+		$files_added++;
 	}
 
 	$compress->close();