diff --git a/src/ZodSchemaClass.ts b/src/ZodSchemaClass.ts
index d968ecf..d2397c9 100644
--- a/src/ZodSchemaClass.ts
+++ b/src/ZodSchemaClass.ts
@@ -7,7 +7,7 @@ import { Extend, StaticMembers } from "./util"
 
 
 export function ZodSchemaClassOf<
-    Super             extends AbstractClass<{}, []>,
+    Super             extends AbstractClass<object, []>,
 
     SchemaT           extends z.ZodRawShape,
     SchemaUnknownKeys extends z.UnknownKeysParam,