diff --git a/src/frame.c b/src/frame.c
index f49750b..135a3d1 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -571,9 +571,7 @@ ssize_t patty_ax25_frame_encode_xid(patty_ax25_params *params,
     } values[] = {
         { PATTY_AX25_PARAM_CLASSES,   2, params->classes },
         { PATTY_AX25_PARAM_HDLC,      3, params->hdlc },
-        { PATTY_AX25_PARAM_INFO_TX,   0, params->info_tx },
         { PATTY_AX25_PARAM_INFO_RX,   0, params->info_rx },
-        { PATTY_AX25_PARAM_WINDOW_TX, 1, params->window_tx },
         { PATTY_AX25_PARAM_WINDOW_RX, 1, params->window_rx },
         { PATTY_AX25_PARAM_ACK,       0, params->ack },
         { PATTY_AX25_PARAM_RETRY,     0, params->retry },