diff --git a/packages/xahau/src/models/ledger/HookDefinition.ts b/packages/xahau/src/models/ledger/HookDefinition.ts
index 75c21ba9..8d564ace 100644
--- a/packages/xahau/src/models/ledger/HookDefinition.ts
+++ b/packages/xahau/src/models/ledger/HookDefinition.ts
@@ -37,6 +37,11 @@ export default interface HookDefintion
    */
   HookOnOutgoing?: string
 
+  /**
+   * The transactions that can emit from the hook. Represented as a 256Hash
+   */
+  HookCanEmit?: string
+
   /**
    * The namespace of the hook.
    */