diff --git a/resolvers/schema.py b/resolvers/schema.py
index 7330b03..1a55c4d 100644
--- a/resolvers/schema.py
+++ b/resolvers/schema.py
@@ -24,7 +24,7 @@ class Notification:
 
 @strawberry.type
 class NotificationSeenResult:
-    error: str = strawberry.field(default=None, name="error")
+    error: str | None
 
 
 @strawberry.type