diff --git a/api/hooks/types.d.ts b/api/hooks/types.d.ts
index 45ecca3..49b8718 100644
--- a/api/hooks/types.d.ts
+++ b/api/hooks/types.d.ts
@@ -150,6 +150,7 @@ export interface HookContext extends GetHookData, PostHookData {
         subject?: string
         from: string
         fromName?: string
+        replyTo?: string
         plain?: string
         html?: string
         attach?: string | string[]