1 files changed, 6 insertions, 7 deletions
diff --git a/packages/server/src/assertion/verifyAssertionResponse.ts b/packages/server/src/assertion/verifyAssertionResponse.ts
index 4441428..a4831aa 100644
--- a/packages/server/src/assertion/verifyAssertionResponse.ts
+++ b/packages/server/src/assertion/verifyAssertionResponse.ts
@@ -46,13 +46,6 @@ export default function verifyAssertionResponse(
     throw new Error('User was NOT present during assertion!');
   }
 
-  const {
-    rpIdHash,
-    flagsBuf,
-    counterBuf,
-    counter,
-  } = authData;
-
   if (counter <= authenticator.counter) {
     // Error out when the counter in the DB is greater than or equal to the counter in the
     // dataStruct. It's related to how the authenticator maintains the number of times its been
@@ -63,6 +56,12 @@ export default function verifyAssertionResponse(
     );
   }
 
+  const {
+    rpIdHash,
+    flagsBuf,
+    counterBuf,
+  } = authDataStruct;
+
   const clientDataHash = toHash(base64url.toBuffer(base64ClientDataJSON));
   const signatureBase = Buffer.concat([
     rpIdHash,