diff --git a/src/acpi/acpigen_ps2_keybd.c b/src/acpi/acpigen_ps2_keybd.c
index e4322c1..43a1ece 100644
--- a/src/acpi/acpigen_ps2_keybd.c
+++ b/src/acpi/acpigen_ps2_keybd.c
@@ -58,6 +58,7 @@
 	[PS2_KEY_MENU] = KEYMAP(0xdd, KEY_CONTROLPANEL),	/* e0d5 */
 	[PS2_KEY_DICTATE] = KEYMAP(0xa7, KEY_DICTATE),		/* e027*/
 	[PS2_KEY_ACCESSIBILITY] = KEYMAP(0xa9, KEY_ACCESSIBILITY),	/* e029 */
+	[PS2_KEY_DO_NOT_DISTURB] = KEYMAP(0xa8, KEY_DO_NOT_DISTURB),	/* e028 */
 };
 
 /* Keymap for numeric keypad keys */
diff --git a/src/ec/google/chromeec/ec_acpi.c b/src/ec/google/chromeec/ec_acpi.c
index 6e36a7fd..1c97dcc 100644
--- a/src/ec/google/chromeec/ec_acpi.c
+++ b/src/ec/google/chromeec/ec_acpi.c
@@ -235,6 +235,7 @@
 	[TK_MENU] = PS2_KEY_MENU,
 	[TK_DICTATE] = PS2_KEY_DICTATE,
 	[TK_ACCESSIBILITY] = PS2_KEY_ACCESSIBILITY,
+	[TK_DONOTDISTURB] = PS2_KEY_DO_NOT_DISTURB,
 };
 
 static void fill_ssdt_ps2_keyboard(const struct device *dev)
diff --git a/src/include/acpi/acpigen_ps2_keybd.h b/src/include/acpi/acpigen_ps2_keybd.h
index fe1101b..deb755b 100644
--- a/src/include/acpi/acpigen_ps2_keybd.h
+++ b/src/include/acpi/acpigen_ps2_keybd.h
@@ -29,6 +29,7 @@
 	PS2_KEY_MENU,
 	PS2_KEY_DICTATE,
 	PS2_KEY_ACCESSIBILITY,
+	PS2_KEY_DO_NOT_DISTURB,
 };
 
 #define PS2_MIN_TOP_ROW_KEYS		2