diff --git a/event.ts b/event.ts
index d72f8ed..4ee7e47 100644
--- a/event.ts
+++ b/event.ts
@@ -35,7 +35,7 @@ export const Kind = {
   BadgeDefinition: 30009,
   Article: 30023,
   FileMetadata: 1063,
-}
+} as const
 
 export interface Event<K extends number = number> {
   kind: K