diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 2ada8ee316b3b04e94ee25d3a9c1939384771c2b..4dc5fa8be781760aa307cff8d01488f270c47b9a 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -159,7 +159,8 @@ struct ap_device_id {
 
 #define AP_DEVICE_ID_MATCH_DEVICE_TYPE		0x01
 
-#define ACPI_ID_LEN	9
+#define ACPI_ID_LEN	16 /* only 9 bytes needed here, 16 bytes are used */
+			   /* to workaround crosscompile issues */
 
 struct acpi_device_id {
 	__u8 id[ACPI_ID_LEN];