diff --git a/38.md b/38.md
index 378da1c..010c14c 100644
--- a/38.md
+++ b/38.md
@@ -57,3 +57,5 @@ Clients MAY display this next to the username on posts or profiles to provide li
 * Nostr music streaming services that update your music status when you're listening
 * Podcasting apps that update your music status when you're listening to a podcast, with a link for others to listen as well
 * Clients can use the system media player to update playing music status
+
+The `content` MAY be an emoji, or [NIP-30](30.md) custom emoji. If the `content` is an empty string then the client should clear the status.