diff --git a/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.dts b/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.dts
index 1902855d838..29e49b34f12 100644
--- a/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.dts
+++ b/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.dts
@@ -208,6 +208,12 @@
 	status = "okay";
 };
 
+&rtc {
+	clocks = <&rcc STM32_CLOCK(APB1, 30)>,
+		 <&rcc STM32_SRC_LSE RTC_SEL(1)>;
+	status = "okay";
+};
+
 zephyr_udc0: &usb {
 	pinctrl-0 = <&usb_dm_pa11 &usb_dp_pa12>;
 	pinctrl-names = "default";
diff --git a/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.yaml b/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.yaml
index 058d6c32731..f6c5bfaa585 100644
--- a/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.yaml
+++ b/boards/st/nucleo_u385rg_q/nucleo_u385rg_q.yaml
@@ -22,5 +22,6 @@ supported:
   - watchdog
   - pwm
   - counter
+  - rtc
 ram: 256
 flash: 1024