diff --git a/webaudio/resources/audit.js b/webaudio/resources/audit.js
index 7ffa4392b05a15d..5d21bd3d4d34462 100644
--- a/webaudio/resources/audit.js
+++ b/webaudio/resources/audit.js
@@ -314,7 +314,7 @@ window.Audit = (function() {
           didThrowCorrectly = true;
           passDetail = '${actual} threw ' + error.name + errorMessage + '.';
         } else if (typeof(this._expected) == "string" &&
-                   error instanceof DOMException &&
+                   error instanceof Error &&
                    error.name === this._expected) {
           // A DOMException was thrown and expected, and the names match
           didThrowCorrectly = true;