diff --git a/routes/api/webauthn/login/[step].ts b/routes/api/webauthn/login/[step].ts
index d5b70bf..2c95765 100644
--- a/routes/api/webauthn/login/[step].ts
+++ b/routes/api/webauthn/login/[step].ts
@@ -118,8 +118,7 @@ export const handler: SessionHandlers = {
 				}
 
 				const { newCounter } = authenticationInfo
-
-				passkey.counter = newCounter
+				const newPasskey = { ...passkey, counter: newCounter }
 
 				// Update credential store
 				const [credential] = await db.ressource.credential.list(
@@ -133,7 +132,7 @@ export const handler: SessionHandlers = {
 
 				// Save credential to db
 				await db.ressource.credential.set([
-					credential.update({ store: passkey }),
+					credential.update({ store: newPasskey }),
 				])
 
 				// log user