diff --git a/SrcJyAliPublic.js b/SrcJyAliPublic.js
index 2ed52ec..31cbd4d 100644
--- a/SrcJyAliPublic.js
+++ b/SrcJyAliPublic.js
@@ -447,7 +447,7 @@ function test_aliecc() {
     let private_key;
     do {
     private_key = new Uint8Array(32);
-    window.crypto.getRandomValues(private_key);
+    window0.crypto.getRandomValues(private_key);
     } while (private_key[0] === 0);
     let ecc_pri = new ECDSA.ECDSA(private_key, "secp256k1");
     let ecc_pub = ecc_pri.getVerifyingKey();