diff --git a/src/mainboard/google/lars/acpi/ec.asl b/src/mainboard/google/lars/acpi/ec.asl
index 88553d4dfa..e4a35c8b42 100644
--- a/src/mainboard/google/lars/acpi/ec.asl
+++ b/src/mainboard/google/lars/acpi/ec.asl
@@ -17,6 +17,9 @@
 #include "../ec.h"
 #include "../gpio.h"
 
+/* Enable EC backed Keyboard Backlight in ACPI */
+#define EC_ENABLE_KEYBOARD_BACKLIGHT
+
 /* Enable EC backed PD MCU device in ACPI */
 #define EC_ENABLE_PD_MCU_DEVICE