diff --git a/src/platform/web/LegacyPlatform.js b/src/platform/web/LegacyPlatform.js
index 85632bf2..b8a6d7e7 100644
--- a/src/platform/web/LegacyPlatform.js
+++ b/src/platform/web/LegacyPlatform.js
@@ -19,6 +19,6 @@ import {hkdf} from "../../utils/crypto/hkdf";
 
 import {Platform as ModernPlatform} from "./Platform.js";
 
-export function Platform(container, assetPaths, config, options = null) {
-    return new ModernPlatform(container, assetPaths, config, options, {aesjs, hkdf});
+export function Platform({ container, assetPaths, config, configURL, options = null }) {
+    return new ModernPlatform({ container, assetPaths, config, configURL, options, cryptoExtras: { aesjs, hkdf }});
 }