diff --git a/net/tcp/tcp_send_unbuffered.c b/net/tcp/tcp_send_unbuffered.c
index 3a610d104eb..a431f312f3d 100644
--- a/net/tcp/tcp_send_unbuffered.c
+++ b/net/tcp/tcp_send_unbuffered.c
@@ -396,6 +396,8 @@ static uint16_t tcpsend_eventhandler(FAR struct net_driver_s *dev,
 
   else if ((flags & TCP_DISCONN_EVENTS) != 0)
     {
+      FAR struct socket *psock = pstate->snd_sock;
+
       ninfo("Lost connection\n");
 
       /* We could get here recursively through the callback actions of
@@ -403,11 +405,12 @@ static uint16_t tcpsend_eventhandler(FAR struct net_driver_s *dev,
        * already been disconnected.
        */
 
+      DEBUGASSERT(psock != NULL);
       if (_SS_ISCONNECTED(psock->s_flags))
          {
            /* Report not connected */
 
-           tcp_lost_connection(pstate->snd_sock, pstate->snd_cb, flags);
+           tcp_lost_connection(psock, pstate->snd_cb, flags);
          }
 
       pstate->snd_sent = -ENOTCONN;