diff --git a/subsys/bluetooth/controller/ll_sw/ull_conn.c b/subsys/bluetooth/controller/ll_sw/ull_conn.c
index c64717edb68..c5005c6a816 100644
--- a/subsys/bluetooth/controller/ll_sw/ull_conn.c
+++ b/subsys/bluetooth/controller/ll_sw/ull_conn.c
@@ -2567,6 +2567,8 @@ static void tx_ull_flush(struct ll_conn *conn)
 #else /* CONFIG_BT_LL_SW_LLCP_LEGACY */
 	struct node_tx *tx;
 
+	ull_tx_q_resume_data(&conn->tx_q);
+
 	tx = tx_ull_dequeue(conn, NULL);
 	while (tx) {
 		memq_link_t *link;