diff --git a/nimble/controller/src/ble_ll_hci_vs.c b/nimble/controller/src/ble_ll_hci_vs.c
index 8cbf3dcab..93ec2e850 100644
--- a/nimble/controller/src/ble_ll_hci_vs.c
+++ b/nimble/controller/src/ble_ll_hci_vs.c
@@ -124,7 +124,7 @@ ble_ll_hci_vs_set_tx_power(uint16_t ocf, const uint8_t *cmdbuf, uint8_t cmdlen,
 
     if (cmd->tx_power == 127) {
         /* restore reset default */
-        g_ble_ll_tx_power = MYNEWT_VAL(BLE_LL_TX_PWR_DBM);
+        g_ble_ll_tx_power = ble_phy_tx_power_round(MYNEWT_VAL(BLE_LL_TX_PWR_DBM));
     } else {
         g_ble_ll_tx_power = ble_phy_tx_power_round(cmd->tx_power);
     }