diff --git a/packages/openauth/src/issuer.ts b/packages/openauth/src/issuer.ts
index f4c1f277..2777a50d 100644
--- a/packages/openauth/src/issuer.ts
+++ b/packages/openauth/src/issuer.ts
@@ -694,6 +694,7 @@ export function issuer<
         iss: issuer(ctx),
         sub: value.subject,
       })
+        .setIssuedAt()
         .setExpirationTime(Math.floor(accessTimeUsed + value.ttl.access))
         .setProtectedHeader(
           await signingKey().then((k) => ({