diff --git a/runtime.d.ts b/runtime.d.ts
index f8345632..6ab8127e 100644
--- a/runtime.d.ts
+++ b/runtime.d.ts
@@ -2967,5 +2967,6 @@ interface Main {
     log(e: string | Error, error: boolean): void
 }
 
+declare var core: CoreMixin
 declare let flags: { [x: string]: any }
 declare let hero : CoreMixin['status']['hero']
\ No newline at end of file