diff --git a/examples/ethernet/ethernet/main/ethernet_main.c b/examples/ethernet/ethernet/main/ethernet_main.c
index d406ab4dc7..f76bd1d76e 100644
--- a/examples/ethernet/ethernet/main/ethernet_main.c
+++ b/examples/ethernet/ethernet/main/ethernet_main.c
@@ -108,7 +108,7 @@ void phy_tlk110_init(void)
     while (esp_eth_smi_read(PHY_IDENTIFIER_REG) != OUI_MSB_21TO6_DEF) {
     }
 
-    esp_eth_smi_write(SOFTWARE_STRAP_CONTROL_REG, DEFAULT_PHY_CONFIG |SW_STRAP_CONFIG_DONE);
+    esp_eth_smi_write(SW_STRAP_CONTROL_REG, DEFAULT_PHY_CONFIG | SW_STRAP_CONFIG_DONE);
     
     ets_delay_us(300);
 
diff --git a/examples/ethernet/ethernet/main/tlk110_phy.h b/examples/ethernet/ethernet/main/tlk110_phy.h
index 87d512c42b..63236edebd 100644
--- a/examples/ethernet/ethernet/main/tlk110_phy.h
+++ b/examples/ethernet/ethernet/main/tlk110_phy.h
@@ -13,7 +13,7 @@
 #define PARTNER_ASM_DIR                    BIT(11)
 #define PARTNER_PAUSE                      BIT(10) 
 
-#define SOFTWARE_STRAP_CONTROL_REG       (0x9)
+#define SW_STRAP_CONTROL_REG            (0x9)
 #define SW_STRAP_CONFIG_DONE               BIT(15)
 #define AUTO_MDIX_ENABLE                   BIT(14)
 #define AUTO_NEGOTIATION_ENABLE            BIT(13)