diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49d502e..76c4482 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [1.0.9]
+This version is compatible with [`389efa3fbe65c77600da63c78d29c0866d292754`](https://github.com/Chia-Network/clvm/tree/389efa3fbe65c77600da63c78d29c0866d292754) of [clvm](https://github.com/Chia-Network/clvm)
+
+### Fixed
+- Fixed an issue of `as_javascript` with tuples inside tuples and ending with 0
+
 ## [1.0.8]
 This version is compatible with [`2722c78ddb92f067c5025196f397e4d2955f9053`](https://github.com/Chia-Network/clvm/tree/2722c78ddb92f067c5025196f397e4d2955f9053) of [clvm](https://github.com/Chia-Network/clvm)
 
@@ -239,6 +245,7 @@ At this version, I've managed to improve test complete time to `79s` -> `2s` by
 Initial (beta) release.
 
 <!--[Unreleased]: https://github.com/Chia-Mine/clvm-js/compare/v0.0.1...v0.0.2-->
+[1.0.9]: https://github.com/Chia-Mine/clvm-js/compare/v1.0.8...v1.0.9
 [1.0.8]: https://github.com/Chia-Mine/clvm-js/compare/v1.0.7...v1.0.8
 [1.0.7]: https://github.com/Chia-Mine/clvm-js/compare/v1.0.6...v1.0.7
 [1.0.6]: https://github.com/Chia-Mine/clvm-js/compare/v1.0.5...v1.0.6
diff --git a/README.md b/README.md
index 0188064..5e0fd73 100644
--- a/README.md
+++ b/README.md
@@ -26,8 +26,8 @@ If you find something not compatible with Python's clvm, please report it to Git
 
 ## Compatibility
 This code is compatible with:
-- [`2722c78ddb92f067c5025196f397e4d2955f9053`](https://github.com/Chia-Network/clvm/tree/2722c78ddb92f067c5025196f397e4d2955f9053) of [clvm](https://github.com/Chia-Network/clvm)
-  - [Diff to the latest clvm](https://github.com/Chia-Network/clvm/compare/2722c78ddb92f067c5025196f397e4d2955f9053...main)
+- [`389efa3fbe65c77600da63c78d29c0866d292754`](https://github.com/Chia-Network/clvm/tree/389efa3fbe65c77600da63c78d29c0866d292754) of [clvm](https://github.com/Chia-Network/clvm)
+  - [Diff to the latest clvm](https://github.com/Chia-Network/clvm/compare/389efa3fbe65c77600da63c78d29c0866d292754...main)
 - [`f9db7faa370c4743e48be8a9823232e4d906c4d0`](https://github.com/Chia-Network/bls-signatures/tree/f9db7faa370c4743e48be8a9823232e4d906c4d0) of [bls-signatures](https://github.com/Chia-Network/bls-signatures)
   - [Diff to the latest bls-signatures](https://github.com/Chia-Network/bls-signatures/compare/f9db7faa370c4743e48be8a9823232e4d906c4d0...main)
 
diff --git a/package.json b/package.json
index ba75d23..365fe5a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "clvm",
-  "version": "1.0.8",
+  "version": "1.0.9",
   "author": "ChiaMineJP <admin@chiamine.jp>",
   "description": "Javascript implementation of chia lisp",
   "license": "MIT",
diff --git a/src/as_javascript.ts b/src/as_javascript.ts
index b75fa76..a9afd00 100644
--- a/src/as_javascript.ts
+++ b/src/as_javascript.ts
@@ -1,5 +1,5 @@
 import {CastableType, SExp} from "./SExp";
-import {Bytes, Tuple, t} from "./__type_compatibility__";
+import {Bytes, Tuple, t, isList, isBytes} from "./__type_compatibility__";
 
 export type TOpStack = Array<(op_stack: TOpStack, val_stack: TValStack) => unknown>;
 export type TValStack = Array<Bytes|SExp|SExp[]|Tuple<SExp, SExp>>;
@@ -18,32 +18,24 @@ export function as_javascript(sexp: SExp){
   function _make_tuple(op_stack: TOpStack, val_stack: TValStack){
     const left = val_stack.pop() as SExp;
     const right = val_stack.pop() as SExp;
-    if(right.equal_to(Bytes.NULL)){
+    if(isBytes(right) && right.equal_to(Bytes.NULL)){
       val_stack.push([left]);
     }
+    else if(isList(right)){
+      const v = [left].concat(right);
+      val_stack.push(v);
+    }
     else{
       val_stack.push(t(left, right));
     }
   }
   
-  function _extend_list(op_stack: TOpStack, val_stack: TValStack){
-    let left = [val_stack.pop()];
-    const right = val_stack.pop();
-    left = left.concat(right);
-    val_stack.push(left as SExp[]);
-  }
-  
   function _as_javascript(op_stack: TOpStack, val_stack: TValStack){
     const v = val_stack.pop() as SExp;
     const pair = v.as_pair();
     if(pair){
       const [left, right] = pair;
-      if(right.listp()){
-        op_stack.push(_extend_list);
-      }
-      else{
-        op_stack.push(_make_tuple);
-      }
+      op_stack.push(_make_tuple);
       op_stack.push(_as_javascript);
       op_stack.push(_roll);
       op_stack.push(_as_javascript);
diff --git a/tests/as_javascript_test.ts b/tests/as_javascript_test.ts
index 735d03d..a529b80 100644
--- a/tests/as_javascript_test.ts
+++ b/tests/as_javascript_test.ts
@@ -42,6 +42,10 @@ test("test_null", () => {
   check_as_javascript(b(""));
 });
 
+test("test_embedded_tuples", () => {
+  check_as_javascript(t(b("10"), t(t(b("200"), b("300")), b("400"))));
+});
+
 test("test_single_bytes", () => {
   for(let _=0;_<256;_++){
     check_as_javascript(Bytes.from([_]));