diff --git a/S3fsStreamWrapper.inc b/S3fsStreamWrapper.inc
index b62b6e0..486664c 100644
--- a/S3fsStreamWrapper.inc
+++ b/S3fsStreamWrapper.inc
@@ -1,6 +1,15 @@
 <?php
 
 /**
+ * @file
+ * Drupal stream wrapper implementation for S3 File System.
+ *
+ * Implements DrupalStreamWrapperInterface to provide an Amazon S3 wrapper
+ * using the "s3://" scheme. It can optionally take over for the "public://"
+ * stream wrapper, too.
+ */
+
+/**
  * The stream wrapper class.
  *
  * In the docs for this class, anywhere you see "<scheme>", it can mean either