diff --git a/api/SubtleCrypto.json b/api/SubtleCrypto.json
index f884db7bb73755..11c019c571e27e 100644
--- a/api/SubtleCrypto.json
+++ b/api/SubtleCrypto.json
@@ -859,7 +859,8 @@
               "opera": "mirror",
               "opera_android": "mirror",
               "safari": {
-                "version_added": "17"
+                "version_added": "17",
+                "notes": "Generates randomized signatures as per <a href='https://datatracker.ietf.org/doc/draft-irtf-cfrg-det-sigs-with-noise/'>draft-irtf-cfrg-det-sigs-with-noise</a>, instead of deterministic signatures as per <a href='https://www.rfc-editor.org/rfc/rfc8032'>RFC 8032</a>."
               },
               "safari_ios": "mirror",
               "samsunginternet_android": "mirror",