diff --git a/docs/rescript.md b/docs/rescript.md
index 956c421..ec1ad6e 100644
--- a/docs/rescript.md
+++ b/docs/rescript.md
@@ -1,3 +1,7 @@
+> **Note:** ReScript support is currently available in `2.0.0-beta.0` or later.
+> 
+> Please install it with `npm install -g @ocsigen/ts2ocaml@beta`.
+
 # ts2ocaml for ReScript
 
 Generates binding for ReScript.
@@ -837,4 +841,4 @@ switch x->FooBar.box {
   | Foo(foo) => ...
   | Bar(bar) => ...
 }
-```
\ No newline at end of file
+```