diff --git a/xep-xxxx-extensible-file-thumbnails.md b/xep-xxxx-extensible-file-thumbnails.md
index 7b5fc0f..54a635c 100644
--- a/xep-xxxx-extensible-file-thumbnails.md
+++ b/xep-xxxx-extensible-file-thumbnails.md
@@ -15,13 +15,16 @@ This document specifies are more general and extensible element for specifiying
```xml
- LEHV6nWB2yk8pyoJadR*.7kCMdnj
+ LEHV6nWB2yk8pyoJadR*.7kCMdnj
```
This example specifies a thumbnail of type `blurhash`, meaning that the child element of the
`` element must contain a `` element (See "Thumbnail Types").
+A `` element MUST only contain one child; that is the child that is specified
+by the `` type attribute.
+
### Thumbnail Types
#### Blurhash
@@ -32,7 +35,7 @@ not make the Blurhash thumbnail too big as to not loose the advantages of Blurha
```xml
- LEHV6nWB2yk8pyoJadR*.7kCMdnj
+ LEHV6nWB2yk8pyoJadR*.7kCMdnj
```
@@ -68,7 +71,7 @@ NOTE: This example is taken from [Stateless Inline Media Sharing](https://xmpp.o
- LEHV6nWB2yk8pyoJadR*.7kCMdnj
+ LEHV6nWB2yk8pyoJadR*.7kCMdnj
`'s child element
+
### 0.2.0
- Namespace the thumbnail type
@@ -115,5 +122,5 @@ The same considerations apply as specified by [Jingle Content Thumbnails](https:
| Key | Value |
| --- | --- |
| Author | PapaTutuWawa |
-| Version | 0.2.0 |
+| Version | 0.2.1 |
| Short name | eft |