diff --git a/src/lib/scripthost.d.ts b/src/lib/scripthost.d.ts
index baf93f55d552b..b163a7e5154c9 100644
--- a/src/lib/scripthost.d.ts
+++ b/src/lib/scripthost.d.ts
@@ -284,5 +284,8 @@ interface VarDate { }
 
 interface DateConstructor {
     new (vd: VarDate): Date;
+}
+
+interface Date {
     getVarDate: () => VarDate;
-}
\ No newline at end of file
+}