diff --git a/support/doc/api/embeds.md b/support/doc/api/embeds.md
index 1dd1443e7..493268c6e 100644
--- a/support/doc/api/embeds.md
+++ b/support/doc/api/embeds.md
@@ -52,7 +52,7 @@ player.pause()
 ## Embed URL parameters
 
 You can customize PeerTube player by specifying URL query parameters.
-For example `https://my-instance.example.com/videos/embed/52a10666-3a18-4e73-93da-e8d3c12c305a??start=1s&stop=18s&loop=1&autoplay=1&muted=1&warningTitle=0&controlBar=0&peertubeLink=0&p2p=0`
+For example `https://my-instance.example.com/videos/embed/52a10666-3a18-4e73-93da-e8d3c12c305a?start=1s&stop=18s&loop=1&autoplay=1&muted=1&warningTitle=0&controlBar=0&peertubeLink=0&p2p=0`
 
 ### start
 
@@ -108,6 +108,10 @@ Most web browsers disable video autoplay if the user did not interact with the v
 
 Value must be `0` or `1`.
 
+### playbackRate
+
+Force the default playback rate (`0.75`, `1.5` etc).
+
 ### title
 
 Hide embed title.