diff --git a/monitor/bt.h b/monitor/bt.h
index b3a7908..fac93a0 100644
--- a/monitor/bt.h
+++ b/monitor/bt.h
uint16_t handle;
} __attribute__ ((packed));
-#define BT_HCI_CMD_LE_READ_DEAULT_DATA_LENGTH 0x2023
+#define BT_HCI_CMD_LE_READ_DEFAULT_DATA_LENGTH 0x2023
struct bt_hci_rsp_le_read_default_data_length {
uint8_t status;
uint16_t tx_len;
uint16_t tx_time;
} __attribute__ ((packed));
-#define BT_HCI_CMD_LE_WRITE_DEAULT_DATA_LENGTH 0x2024
+#define BT_HCI_CMD_LE_WRITE_DEFAULT_DATA_LENGTH 0x2024
struct bt_hci_cmd_le_write_default_data_length {
uint16_t tx_len;
uint16_t tx_time;