diff --git a/deltachat-ffi/deltachat.h b/deltachat-ffi/deltachat.h
index 155557c53..a2ea9da14 100644
--- a/deltachat-ffi/deltachat.h
+++ b/deltachat-ffi/deltachat.h
@@ -420,7 +420,8 @@ char*           dc_get_blobdir               (const dc_context_t* context);
  *                    and also recoded to a reasonable size.
  * - `e2ee_enabled` = 0=no end-to-end-encryption, 1=prefer end-to-end-encryption (default)
  * - `mdns_enabled` = 0=do not send or request read receipts,
- *                    1=send and request read receipts (default)
+ *                    1=send and request read receipts
+ *                    default=send and request read receipts, only send but not reuqest if `bot` is set
  * - `bcc_self`     = 0=do not send a copy of outgoing messages to self (default),
  *                    1=send a copy of outgoing messages to self.
  *                    Sending messages to self is needed for a proper multi-account setup,