diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index f8ddcaaa2ac6956bed87778e60d19b4925550a61..1d9e32d2bc63e02ec91b2a6232a01f7c6518e496 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -1229,9 +1229,9 @@ static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
 		if (range) {
 			input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
 			input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
-			input_report_abs(pen_input, ABS_TILT_X, frame[7]);
-			input_report_abs(pen_input, ABS_TILT_Y, frame[8]);
-			input_report_abs(pen_input, ABS_Z, get_unaligned_le16(&frame[9]));
+			input_report_abs(pen_input, ABS_TILT_X, (char)frame[7]);
+			input_report_abs(pen_input, ABS_TILT_Y, (char)frame[8]);
+			input_report_abs(pen_input, ABS_Z, (int16_t)get_unaligned_le16(&frame[9]));
 			input_report_abs(pen_input, ABS_WHEEL, get_unaligned_le16(&frame[11]));
 		}
 		input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));