diff --git a/lib/tftp.c b/lib/tftp.c
index 782bb736710fea77d5f9b77396686396110afb2f..46ed2a71e7ee77942a15a3c9e2c012af041f2a34 100644
--- a/lib/tftp.c
+++ b/lib/tftp.c
@@ -738,7 +738,7 @@ static CURLcode tftp_tx(tftp_state_data_t *state, tftp_event_t event)
         }
         else {
           /* Re-send the data packet */
-          sbytes = sendto(state->sockfd, (void *)&state->spacket,
+          sbytes = sendto(state->sockfd, (void *)&state->spacket.data,
                           4+state->sbytes, SEND_4TH_ARG,
                           (struct sockaddr *)&state->remote_addr,
                           state->remote_addrlen);