diff --git a/files/en-us/web/http/reference/headers/set-cookie/index.md b/files/en-us/web/http/reference/headers/set-cookie/index.md
index 6f79a3813cc456a..2dfe8fa036e73ea 100644
--- a/files/en-us/web/http/reference/headers/set-cookie/index.md
+++ b/files/en-us/web/http/reference/headers/set-cookie/index.md
@@ -74,7 +74,8 @@ Set-Cookie: <cookie-name>=<cookie-value>; Domain=<domain-value>; Secure; HttpOnl
 
     Only the current domain can be set as the value, or a domain of a higher order, unless it is a public suffix. Setting the domain will make the cookie available to it, as well as to all its subdomains.
 
-    If omitted, this attribute defaults to the host of the current document URL, not including subdomains.
+    If omitted, the cookie is returned only to the host that sent them (i.e., it becomes a "host-only cookie").
+    This is more restrictive than setting the host name, as the cookie is not made available to subdomains of the host.
 
     Contrary to earlier specifications, leading dots in domain names (`.example.com`) are ignored.