diff --git a/drivers/serial/serial_esp32_usb.c b/drivers/serial/serial_esp32_usb.c
index 05fb661fe4f..43293b55db0 100644
--- a/drivers/serial/serial_esp32_usb.c
+++ b/drivers/serial/serial_esp32_usb.c
@@ -28,7 +28,6 @@ struct serial_esp32_usb_pin {
 struct serial_esp32_usb_config {
 	const struct device *clock_dev;
 	const clock_control_subsys_t clock_subsys;
-	uint8_t uart_num;
 	int irq_source;
 };
 
@@ -265,7 +264,6 @@ static const DRAM_ATTR struct uart_driver_api serial_esp32_usb_api = {
 
 #define ESP32_UART_INIT(idx)                                                                       \
 	static const DRAM_ATTR struct serial_esp32_usb_config serial_esp32_usb_cfg_port_##idx = {  \
-		.uart_num = DT_INST_PROP(idx, peripheral),                                         \
 		.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(idx)),                              \
 		.clock_subsys = (clock_control_subsys_t)DT_INST_CLOCKS_CELL(idx, offset),          \
 		.irq_source = DT_INST_IRQN(idx)                                                    \
diff --git a/dts/bindings/serial/espressif,esp32-usb-serial.yaml b/dts/bindings/serial/espressif,esp32-usb-serial.yaml
index 6d2acd06ea7..27f2b8c2311 100644
--- a/dts/bindings/serial/espressif,esp32-usb-serial.yaml
+++ b/dts/bindings/serial/espressif,esp32-usb-serial.yaml
@@ -10,9 +10,3 @@ properties:
 
   interrupts:
     required: false
-
-  peripheral:
-    type: int
-    required: true
-    description: |
-      The UART peripheral number
diff --git a/dts/riscv/espressif/esp32c3.dtsi b/dts/riscv/espressif/esp32c3.dtsi
index c860e669ea5..dcfb27d68d6 100644
--- a/dts/riscv/espressif/esp32c3.dtsi
+++ b/dts/riscv/espressif/esp32c3.dtsi
@@ -154,7 +154,6 @@
 			interrupt-parent = <&intc>;
 			clocks = <&rtc ESP32_USB_MODULE>;
 			current-speed = <115200>;
-			peripheral = <0>;
 		};
 
 		timer0: counter@6001f000 {