diff --git a/src/ec/google/wilco/Kconfig b/src/ec/google/wilco/Kconfig
index e905d5ee21..4202c1d7b5 100644
--- a/src/ec/google/wilco/Kconfig
+++ b/src/ec/google/wilco/Kconfig
@@ -2,6 +2,7 @@ config EC_GOOGLE_WILCO
 	bool
 	default n
 	select EC_GOOGLE_COMMON_MEC
+	select EC_ACPI
 	help
 	  Google Wilco Embedded Controller interface.
 
diff --git a/src/ec/google/wilco/chip.c b/src/ec/google/wilco/chip.c
index a9caaeca23..0858e1c3bf 100644
--- a/src/ec/google/wilco/chip.c
+++ b/src/ec/google/wilco/chip.c
@@ -13,8 +13,10 @@
  * GNU General Public License for more details.
  */
 
+#include <arch/acpi.h>
 #include <bootstate.h>
 #include <device/pnp.h>
+#include <ec/acpi/ec.h>
 #include <pc80/keyboard.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -55,6 +57,13 @@ static void wilco_ec_init(struct device *dev)
 	if (!dev->enabled)
 		return;
 
+	/* Disable S0ix support in EC RAM with ACPI EC interface */
+	if (!acpi_is_wakeup_s3()) {
+		ec_set_ports(CONFIG_EC_BASE_ACPI_COMMAND,
+			     CONFIG_EC_BASE_ACPI_DATA);
+		ec_write(EC_RAM_S0IX_SUPPORT, 0);
+	}
+
 	/* Print EC firmware information */
 	wilco_ec_print_all_info();
 
diff --git a/src/ec/google/wilco/commands.h b/src/ec/google/wilco/commands.h
index 53f6d0f401..9c1685b293 100644
--- a/src/ec/google/wilco/commands.h
+++ b/src/ec/google/wilco/commands.h
@@ -50,6 +50,11 @@ enum {
 	KB_BIOS_PROGRESS = 0xc2,
 };
 
+enum ec_ram_addr {
+	/* Indicate support for S0ix */
+	EC_RAM_S0IX_SUPPORT = 0xb8,
+};
+
 enum set_acpi_mode_cmd {
 	ACPI_OFF = 0,
 	ACPI_ON