diff --git a/shared/static_atom_list.rs b/shared/static_atom_list.rs
index 0004bda..20591d8 100644
--- a/shared/static_atom_list.rs
+++ b/shared/static_atom_list.rs
@@ -944,6 +944,8 @@ pub static ATOMS: &'static [&'static str] = &[
     "rowspan",
     "rquote",
     "rspace",
+    "rb",
+    "rtc",
     "ruby",
     "rule",
     "rules",