diff --git a/tests/podcast-test.mjs b/tests/podcast-test.mjs
index b18a004..8b16a17 100644
--- a/tests/podcast-test.mjs
+++ b/tests/podcast-test.mjs
@@ -604,11 +604,10 @@ try {
         paused: false,
         speak(utterance) {
           window.__utterances.push(utterance);
-          this._speaking = true;
-          const mine = this;
+          window.speechSynthesis._speaking = true;
           queueMicrotask(() => utterance.onstart && utterance.onstart({ name: "start", charIndex: 0 }));
           setTimeout(() => {
-            mine._speaking = false;
+            window.speechSynthesis._speaking = false;
             if (utterance.onend) utterance.onend();
           }, SENTENCE_MS);
         },