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diff --git a/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/instantiation-error-6.html b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/instantiation-error-6.html
new file mode 100644
index 0000000000..8d3ce121ee
--- /dev/null
+++ b/testing/web-platform/tests/html/semantics/scripting-1/the-script-element/module/instantiation-error-6.html
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<title>Handling of instantiation errors, 6</title>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+    setup({allow_uncaught_exception: true});
+
+    window.log = [];
+
+    window.addEventListener("error", ev => log.push(ev.error));
+
+    const test_load = async_test(
+        "Test that ambiguous star exports lead to an instantiation error " +
+        "and that the correct module is blamed.");
+    // Concretely, instantiation-error-6a.js fails to instantiate because it
+    // requests a name from instantion-error-6b.js that is ambiguous there.
+    // instantiation-error-6b.js itself, however, is fine, and it instantiates
+    // and evaluates successfully.
+    window.addEventListener("load", test_load.step_func_done(ev => {
+      const exn = log[0];
+      assert_array_equals(log, [
+          exn, 1,
+          "instantiation-error-6c",
+          "instantiation-error-6d",
+          "instantiation-error-6b", 2
+      ]);
+      assert_equals(exn.constructor, SyntaxError);
+    }));
+
+    function unreachable() { log.push("unexpected"); }
+</script>
+<script type="module" src="./instantiation-error-6a.js"
+    onerror="unreachable()" onload="log.push(1)"></script>
+<script type="module" src="./instantiation-error-6b.js"
+    onerror="unreachable()" onload="log.push(2)"></script>