diff --git a/src/main.rs b/src/main.rs
index b4b10ae..5189258 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -158,7 +158,7 @@ impl Backend {
                 let new_id = Uuid::new_v4();
                 let expiration_date = OffsetDateTime::now_utc() + Duration::days(30);
                 let mut cookie = Cookie::new("client_id", new_id.to_string());
-                cookie.set_expires(Expiration::DateTime(expiration_date.into()));
+                cookie.set_expires(Expiration::DateTime(expiration_date));
                 cookie.set_http_only(true);
                 cookie.set_secure(true);