diff --git a/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c b/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
index eb110840e8..c475036958 100644
--- a/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
+++ b/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.c
@@ -448,6 +448,7 @@ static irqreturn_t rtl93xx_net_irq(int irq, void *dev_id)
 }
 
 static const struct rtl838x_eth_reg rtl838x_reg = {
+	.family_id = RTL8380_FAMILY_ID,
 	.net_irq = rtl83xx_net_irq,
 	.mac_port_ctrl = rtl838x_mac_port_ctrl,
 	.dma_if_intr_sts = RTL838X_DMA_IF_INTR_STS,
@@ -473,6 +474,7 @@ static const struct rtl838x_eth_reg rtl838x_reg = {
 };
 
 static const struct rtl838x_eth_reg rtl839x_reg = {
+	.family_id = RTL8390_FAMILY_ID,
 	.net_irq = rtl83xx_net_irq,
 	.mac_port_ctrl = rtl839x_mac_port_ctrl,
 	.dma_if_intr_sts = RTL839X_DMA_IF_INTR_STS,
@@ -498,6 +500,7 @@ static const struct rtl838x_eth_reg rtl839x_reg = {
 };
 
 static const struct rtl838x_eth_reg rtl930x_reg = {
+	.family_id = RTL9300_FAMILY_ID,
 	.net_irq = rtl93xx_net_irq,
 	.mac_port_ctrl = rtl930x_mac_port_ctrl,
 	.dma_if_intr_rx_runout_sts = RTL930X_DMA_IF_INTR_RX_RUNOUT_STS,
@@ -529,6 +532,7 @@ static const struct rtl838x_eth_reg rtl930x_reg = {
 };
 
 static const struct rtl838x_eth_reg rtl931x_reg = {
+	.family_id = RTL9310_FAMILY_ID,
 	.net_irq = rtl93xx_net_irq,
 	.mac_port_ctrl = rtl931x_mac_port_ctrl,
 	.dma_if_intr_rx_runout_sts = RTL931X_DMA_IF_INTR_RX_RUNOUT_STS,
diff --git a/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.h b/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.h
index 54de5ff9b0..9b94140ca9 100644
--- a/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.h
+++ b/target/linux/realtek/files-6.12/drivers/net/ethernet/rtl838x_eth.h
@@ -436,6 +436,7 @@ struct p_hdr;
 struct dsa_tag;
 
 struct rtl838x_eth_reg {
+	int family_id;
 	irqreturn_t (*net_irq)(int irq, void *dev_id);
 	int (*mac_port_ctrl)(int port);
 	int dma_if_intr_sts;