diff --git a/samples/boards/stm32/power_mgmt/suspend_to_ram/boards/nucleo_wba55cg.overlay b/samples/boards/stm32/power_mgmt/suspend_to_ram/boards/nucleo_wba55cg.overlay
index 3ed3dab7a88..a3d46e95fb7 100644
--- a/samples/boards/stm32/power_mgmt/suspend_to_ram/boards/nucleo_wba55cg.overlay
+++ b/samples/boards/stm32/power_mgmt/suspend_to_ram/boards/nucleo_wba55cg.overlay
@@ -7,6 +7,10 @@
 / {
 	/* Change min residency time to ease power consumption measurement */
 	cpus {
+		cpu0: cpu@0 {
+			cpu-power-states = <&stop0 &stop1 &standby>;
+		};
+
 		power-states {
 			stop0: state0 {
 				min-residency-us = <500000>;