diff --git a/include/proto/connection.h b/include/proto/connection.h
index ff63e03cc..52b547c19 100644
--- a/include/proto/connection.h
+++ b/include/proto/connection.h
@@ -46,11 +46,13 @@ static inline int conn_xprt_init(struct connection *conn)
 }
 
 /* Calls the close() function of the transport layer if any, and always unsets
- * the transport layer.
+ * the transport layer. However this is not done if the CO_FL_XPRT_TRACKED flag
+ * is set, which allows logs to take data from the transport layer very late if
+ * needed.
  */
 static inline void conn_xprt_close(struct connection *conn)
 {
-	if (conn->xprt) {
+	if (conn->xprt && !(conn->flags & CO_FL_XPRT_TRACKED)) {
 		if (conn->xprt->close)
 			conn->xprt->close(conn);
 		conn->xprt = NULL;
diff --git a/include/types/connection.h b/include/types/connection.h
index 35ce1f5ab..5803c2c2e 100644
--- a/include/types/connection.h
+++ b/include/types/connection.h
@@ -145,6 +145,12 @@ enum {
 	 * as DATA or SOCK on some implementations.
 	 */
 	CO_FL_POLL_SOCK     = CO_FL_HANDSHAKE | CO_FL_WAIT_L4_CONN | CO_FL_WAIT_L6_CONN,
+
+	/* This last flag indicates that the transport layer is used (for instance
+	 * by logs) and must not be cleared yet. The last call to conn_xprt_close()
+	 * must be done after clearing this flag.
+	 */
+	CO_FL_XPRT_TRACKED  = 0x80000000,
 };
 
 /* target types */
diff --git a/src/session.c b/src/session.c
index ba074c8cc..7c218bf80 100644
--- a/src/session.c
+++ b/src/session.c
@@ -548,6 +548,10 @@ static void session_free(struct session *s)
 
 	http_end_txn(s);
 
+	/* ensure the client-side transport layer is destroyed */
+	s->si[0].conn.flags &= ~CO_FL_XPRT_TRACKED;
+	conn_xprt_close(&s->si[0].conn);
+
 	for (i = 0; i < s->store_count; i++) {
 		if (!s->store[i].ts)
 			continue;