diff --git a/bsp/lpc54114-lite/drivers/drv_i2c.c b/bsp/lpc54114-lite/drivers/drv_i2c.c
index 74047129f8f2cc8ec2e6b210fd3bace204f39fbf..0caee3453c089365f8720bf81fe9f8d582641190 100644
--- a/bsp/lpc54114-lite/drivers/drv_i2c.c
+++ b/bsp/lpc54114-lite/drivers/drv_i2c.c
@@ -53,7 +53,7 @@ static rt_size_t master_xfer(struct rt_i2c_bus_device *bus, struct rt_i2c_msg ms
         xfer.slaveAddress   = msg->addr;
         xfer.flags          = kI2C_TransferDefaultFlag;
         xfer.subaddress     = 0;
-        xfer.subaddressSize = 1;
+        xfer.subaddressSize = 0;
         xfer.data           = msg->buf;
         xfer.dataSize       = msg->len;