diff --git a/xep-xxxx-file-upload-notification.md b/xep-xxxx-file-upload-notification.md
index 1e22d80..8cb98bd 100644
--- a/xep-xxxx-file-upload-notification.md
+++ b/xep-xxxx-file-upload-notification.md
@@ -13,17 +13,20 @@ that will be replaced once the file has been uploaded.
 
 ```xml
 <message from="some.user@some.server/abc123" to="someone.else@other.server" id="aaaaa">
-  <file-upload xmlns="proto:urn:xmpp:fun:0">
-    <file xmlns="urn:xmpp:file:metadata:0">
-	  <name>vacation.jpg</name>	
-	  <media-type>image/jpeg</media-type>
-	</file>
-	<thumbnail type="proto:urn:xmpp:file-thumbnails:0:blurhash" xmlns="proto:urn:xmpp:file-thumbnails:0">
-	  <blurhash>LEHV6nWB2yk8pyoJadR*.7kCMdnj</blurhash>
-	</thumbnail>
-  </file-upload>
-  <origin-id xmlns="urn:xmpp:sid:0" id="ccccc" />
-  <no-permanent-store xmlns="urn:xmpp:hints" />
+	<file-upload xmlns="proto:urn:xmpp:fun:0">
+		<file xmlns="urn:xmpp:file:metadata:0">
+			<name>vacation.jpg</name>	
+			<media-type>image/jpeg</media-type>
+		</file>
+		<thumbnail type="blurhash" xmlns="proto:urn:xmpp:file-thumbnails:0">
+			<blurhash>LEHV6nWB2yk8pyoJadR*.7kCMdnj</blurhash>
+		</thumbnail>
+		<thumbnail type="base64-bob" xmlns="proto:urn:xmpp:file-thumbnails:0">
+			<base64-bob uri="cid:sha1+...@bob.xmpp.org" media-type="image/png" width="128" height="96" />
+		</thumbnail>
+	</file-upload>
+	<origin-id xmlns="urn:xmpp:sid:0" id="ccccc" />
+	<no-permanent-store xmlns="urn:xmpp:hints" />
 </message>
 ```
 
@@ -31,7 +34,7 @@ The `<file-upload>` element indicates that a message should be replaced with the
 file embed once the upload is done. Metadata about the file should be included
 as specified by [File metadata element](https://xmpp.org/extensions/xep-0446.html).
 The metadata should include only the bare minimum, i.e. the mime type and filename.
-Additionally, a thumbnail can be sent with the notification in order to allow clients
+Additionally, one or more thumbnails can be sent with the notification in order to allow clients
 to already show a preview. The `<file-thumbnail />` element is specified by [File Thumbnails](https://github.com/PapaTutuWawa/custom-xeps/blob/master/xep-xxxx-file-thumbnails.md).
 
 Note that [Unique and Stable Origin IDs](https://xmpp.org/extensions/xep-0359.html) must be used when the message is sent to a
@@ -82,5 +85,5 @@ prevent arbitrary messages to be replaced.
 | Key | Value |
 | --- | --- |
 | Author | PapaTutuWawa |
-| Version | 0.0.2 |
+| Version | 0.0.3 |
 | Short name | fun |