diff --git a/src/soc/intel/alderlake/acpi.c b/src/soc/intel/alderlake/acpi.c
index 463112fb6a..4c5a515142 100644
--- a/src/soc/intel/alderlake/acpi.c
+++ b/src/soc/intel/alderlake/acpi.c
@@ -217,6 +217,7 @@ static struct min_sleep_state min_pci_sleep_states[] = {
 	{ PCH_DEVFN_ESPI,	ACPI_DEVICE_SLEEP_D0 },
 	{ PCH_DEVFN_PMC,	ACPI_DEVICE_SLEEP_D0 },
 	{ PCH_DEVFN_HDA,	ACPI_DEVICE_SLEEP_D0 },
+	{ PCH_DEVFN_SMBUS,	ACPI_DEVICE_SLEEP_D0 },
 	{ PCH_DEVFN_SPI,	ACPI_DEVICE_SLEEP_D3 },
 	{ PCH_DEVFN_GBE,	ACPI_DEVICE_SLEEP_D3 },
 };