diff --git a/doc/rust.texi b/doc/rust.texi
index 5fc1a8b7b1d..8deef808b55 100644
--- a/doc/rust.texi
+++ b/doc/rust.texi
@@ -674,6 +674,8 @@ The keywords are:
 @item @code{state}
 @tab @code{gc}
 @tab @code{abs}
+@tab @code{const}
+@tab @code{thread}
 @item @code{auth}
 @tab @code{impure}
 @tab @code{unsafe}