diff --git a/js/media/elementSource.js b/js/media/elementSource.js
index aa07b5bd..706d80f5 100644
--- a/js/media/elementSource.js
+++ b/js/media/elementSource.js
@@ -129,7 +129,9 @@ export default class ElementSource {
 
   getDuration() {
     const { duration } = this._audio;
-    return isNaN(duration) ? 0 : duration;
+    // Safari on iOS currently has a strange behavior where it reports
+    // the duration as infinity. For now, 0 is better even though it's still wrong.
+    return isNaN(duration) || duration === Infinity ? 0 : duration;
   }
 
   getTimeElapsed() {