diff --git a/src/traits/ObservableZodSchemaObject.ts b/src/traits/ObservableZodSchemaObject.ts
index 8b6d624..13bed4d 100644
--- a/src/traits/ObservableZodSchemaObject.ts
+++ b/src/traits/ObservableZodSchemaObject.ts
@@ -1,10 +1,14 @@
-import { trait } from "@thilawyn/traitify-ts"
+import { expression } from "@thilawyn/traitify-ts"
+import { InstantiableZodSchemaObject } from "./InstantiableZodSchemaObject"
 
 
-export const ObservableZodSchemaObject = trait
-    .implement(Super => class ObservableZodSchemaObject extends Super {
-        constructor(...args: any[]) {
-            super(...args)
-        }
-    })
+export const ObservableZodSchemaObject = expression
+    .expresses(InstantiableZodSchemaObject)
     .build()
+    .subtrait()
+        .implement(Super => class ObservableZodSchemaObject extends Super {
+            constructor(...args: any[]) {
+                super(...args)
+            }
+        })
+        .build()