diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index 7702b27a18ed..e9d3cc159181 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -1107,10 +1107,10 @@ struct acpi_table_slic {
 /*******************************************************************************
  *
  * SPCR - Serial Port Console Redirection table
- *        Version 1
+ *        Version 2
  *
  * Conforms to "Serial Port Console Redirection Table",
- * Version 1.00, January 11, 2002
+ * Version 1.03, August 10, 2015
  *
  ******************************************************************************/
 
@@ -1142,6 +1142,8 @@ struct acpi_table_spcr {
 
 #define ACPI_SPCR_DO_NOT_DISABLE    (1)
 
+/* Values for Interface Type: See the definition of the DBG2 table */
+
 /*******************************************************************************
  *
  * SPMI - Server Platform Management Interface table