diff --git a/wasm/webapi/esm-integration/script-src-blocks-wasm.tentative.sub.html b/wasm/webapi/esm-integration/script-src-blocks-wasm.tentative.sub.html
index 0d5c7ca6ed57fd..1fed3a15c69c35 100644
--- a/wasm/webapi/esm-integration/script-src-blocks-wasm.tentative.sub.html
+++ b/wasm/webapi/esm-integration/script-src-blocks-wasm.tentative.sub.html
@@ -18,4 +18,4 @@
       assert_array_equals(log, ["script-src-elem"]);
     }));
 </script>
-<script type="module" src="https://{{hosts[alt][]}}/resources/execute-start.wasm"></script>
+<script type="module" src="https://{{hosts[alt][]}}:{{ports[https][0]}}/resources/execute-start.wasm"></script>