diff --git a/src/ec/google/chromeec/acpi/ec.asl b/src/ec/google/chromeec/acpi/ec.asl
index a5324920e6..422abe1881 100644
--- a/src/ec/google/chromeec/acpi/ec.asl
+++ b/src/ec/google/chromeec/acpi/ec.asl
@@ -54,6 +54,8 @@ Device (EC0)
 		PATC, 8,	// Programmable Auxiliary Trip Commit
 		CHGL, 8,	// Charger Current Limit
 		TBMD, 1,	// Tablet mode
+		Offset (0x0a),
+		KBLE, 1,	// Keyboard Backlight exists
 	}
 
 #if IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC_ACPI_MEMMAP)
diff --git a/src/ec/google/chromeec/acpi/keyboard_backlight.asl b/src/ec/google/chromeec/acpi/keyboard_backlight.asl
index 75a8df3cca..d76bed87ea 100644
--- a/src/ec/google/chromeec/acpi/keyboard_backlight.asl
+++ b/src/ec/google/chromeec/acpi/keyboard_backlight.asl
@@ -23,6 +23,20 @@ Scope (\_SB)
 		Name (_HID, "GOOG0002")
 		Name (_UID, 1)
 
+		/* Ask EC if we even have a backlight
+		 * Return 0xf (present, enabled, show in UI, functioning) or 0
+		 *
+		 * With older EC codebases that don't support the Device
+		 * Features bitfield, this reports the keyboard backlight as
+		 * enabled since reads to undefined addresses in EC address
+		 * space return 0xff and so KBLE will be 1.
+		 */
+		Method (_STA, 0, NotSerialized)
+		{
+			Multiply (0xf, \_SB.PCI0.LPCB.EC0.KBLE, Local0)
+			Return (Local0)
+		}
+
 		/* Read current backlight value */
 		Method (KBQC, 0, NotSerialized)
 		{