diff --git a/source/types.ts b/source/types.ts
index 1867f1d..d880b14 100644
--- a/source/types.ts
+++ b/source/types.ts
@@ -207,6 +207,7 @@ export type SchemaProperties = {
 export type SchemaMixin = {
   $ref: string;
 };
+export type SchemaMetadata = { entity_event: boolean };
 export interface Schema {
   properties: SchemaProperties;
   default_projections: string[];
@@ -219,6 +220,7 @@ export interface Schema {
   system_projections?: string[];
   alias_for?: string | Data;
   $mixin?: SchemaMixin;
+  metadata?: SchemaMetadata;
 }
 export interface QueryOptions {
   abortController?: AbortController;