diff --git a/machine/HG0402XG_V1_1.c b/machine/HG0402XG_V1_1.c
index 6a420daa..5d7be1e9 100644
--- a/machine/HG0402XG_V1_1.c
+++ b/machine/HG0402XG_V1_1.c
@@ -11,12 +11,12 @@ __code const struct machine machine = {
 	.is_sfp = {0, 0, 0, 2, 0, 0, 0, 0, 1},
 	.sfp_port[0].pin_detect = 50,
 	.sfp_port[0].pin_los = 10,
-	.sfp_port[0].pin_tx_disable = 0xFF,
+	.sfp_port[0].pin_tx_disable = GPIO_NA,
 	.sfp_port[0].sds = 1,
 	.sfp_port[0].i2c = I2CBUS( GPIO41_I2C_SDA3_MDIO1, GPIO40_I2C_SCL3_MDC1 ),
 	.sfp_port[1].pin_detect = 30,
 	.sfp_port[1].pin_los = 51,
-	.sfp_port[1].pin_tx_disable = 0xFF,
+	.sfp_port[1].pin_tx_disable = GPIO_NA,
 	.sfp_port[1].sds = 0,
 	.sfp_port[1].i2c = I2CBUS( GPIO39_I2C_SDA4, GPIO40_I2C_SCL3_MDC1 ),
 	.reset_pin = GPIO_NA,