diff --git a/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.html b/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.html
index c8f9e977fe1..2b126c1f8ba 100644
--- a/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.html
+++ b/tests/manual/wasm/qwasmwindow/qwasmwindow_harness.html
@@ -4,7 +4,7 @@
     <script type="text/javascript" src="qwasmwindow_harness.js"></script>
     <script>
         (async () => {
-            const instance = await createQtAppInstance({});
+            const instance = await qwasmwindow_harness_entry({});
             window.instance = instance;
 
             const testSandbox = document.createElement('div');