diff --git a/passkeys/static/passkeys/js/helpers.js b/passkeys/static/passkeys/js/helpers.js
index d6b70ab..6626653 100644
--- a/passkeys/static/passkeys/js/helpers.js
+++ b/passkeys/static/passkeys/js/helpers.js
@@ -1,4 +1,9 @@
 var publicKeyCredentialToJSON = (pubKeyCred) => {
+
+            if(pubKeyCred instanceof Uint8Array){
+                return base64url.encode(pubKeyCred.buffer);
+            }
+            
             if(pubKeyCred instanceof Array) {
                 let arr = [];
                 for(let i of pubKeyCred)
@@ -22,4 +27,4 @@ var publicKeyCredentialToJSON = (pubKeyCred) => {
             }
 
             return pubKeyCred
-        }
\ No newline at end of file
+        }