diff --git a/src/js/chat-input.js b/src/js/chat-input.js
index 63921fd..e3fd796 100644
--- a/src/js/chat-input.js
+++ b/src/js/chat-input.js
@@ -103,7 +103,7 @@ function send(body) {
 		format: "org.matrix.custom.html",
 		body,
 		formatted_body: toHTML(body),
-		"chat.carbon.input_body": body
+		"chat.carbon.message.input_body": body
 	}
 	return store.activeRoom.value().timeline.send("m.room.message", content)
 }