diff --git a/index.d.ts b/index.d.ts
index 77e444c..cd4c920 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -606,6 +606,7 @@ export interface HookException {
     html?: string
     string?: string
     bytes?: any
+    json?: any
     file?: string
     [key: string]: any
 }