diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index ed85fe7494aeaba28bd38f6c9f731dc7a7ad0df2..b7fb00d8e4c1161fc3fc1742e9bd24e614d1e2f9 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -150,7 +150,7 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action)
 
 	status = acpi_hw_write(enable_mask, &gpe_register_info->enable_address);
 	if (ACPI_SUCCESS(status) && (action & ACPI_GPE_SAVE_MASK)) {
-		gpe_register_info->enable_mask = enable_mask;
+		gpe_register_info->enable_mask = (u8)enable_mask;
 	}
 	return (status);
 }