diff --git a/test/audioTest.js b/test/audioTest.js
index 6fde361..5a4d1fd 100644
--- a/test/audioTest.js
+++ b/test/audioTest.js
@@ -43,6 +43,8 @@
 		
 		crypto.subtle.digest("SHA-256", data).then(function(hash){
 			hashNode.textContent = byteArrayToHex(hash);
+		}, function(error){
+			hashNode.textContent = error;
 		});
 		hashSets[set].appendChild(container);
 	}