diff --git a/docs/libcurl/opts/CURLOPT_HTTP_VERSION.md b/docs/libcurl/opts/CURLOPT_HTTP_VERSION.md
index 3cb0cded98..dd791b81cb 100644
--- a/docs/libcurl/opts/CURLOPT_HTTP_VERSION.md
+++ b/docs/libcurl/opts/CURLOPT_HTTP_VERSION.md
@@ -90,6 +90,8 @@ server does not support HTTP/3.
 
 # DEFAULT
 
+Since curl 8.13.0: CURL_HTTP_VERSION_NONE
+
 Since curl 7.62.0: CURL_HTTP_VERSION_2TLS
 
 Before that: CURL_HTTP_VERSION_1_1