diff --git a/core/events/base.py b/core/events/base.py
index 4d1e64bc..7235f082 100644
--- a/core/events/base.py
+++ b/core/events/base.py
@@ -30,6 +30,8 @@ class EventMeta:
 
 @dataclass(frozen=True)
 class Event:
+    meta: EventMeta
+
     def to_dict(self):
         res = asdict(self)
         res["meta"]["name"] = self.__class__.__name__