diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index cae9b0595692..9e8061f44563 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -1928,7 +1928,7 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
 	/* first new observed key (star, favorites) is 0x1311 */
 	TP_ACPI_HOTKEYSCAN_STAR = 69,
 	TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2,
-	TP_ACPI_HOTKEYSCAN_UNK25,
+	TP_ACPI_HOTKEYSCAN_CALCULATOR,
 	TP_ACPI_HOTKEYSCAN_BLUETOOTH,
 	TP_ACPI_HOTKEYSCAN_KEYBOARD,
 
@@ -3449,7 +3449,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 
 		KEY_FAVORITES,       /* Favorite app, 0x311 */
 		KEY_RESERVED,        /* Clipping tool */
-		KEY_RESERVED,
+		KEY_CALC,            /* Calculator (above numpad, P52) */
 		KEY_BLUETOOTH,       /* Bluetooth */
 		KEY_KEYBOARD         /* Keyboard, 0x315 */
 		},