diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index c3d11fabc46f21c98c6122497958837ae291b171..0e9262b6273ace985131b979d0fef46b66818e94 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3456,7 +3456,7 @@ enum ADAPTIVE_KEY_MODE {
 	LAYFLAT_MODE
 };
 
-const int adaptive_keyboard_modes[] = {
+static const int adaptive_keyboard_modes[] = {
 	HOME_MODE,
 /*	WEB_BROWSER_MODE = 2,
 	WEB_CONFERENCE_MODE = 3, */