diff --git a/source/include/actbl2.h b/source/include/actbl2.h
index b0182e5d7..2e54f24b5 100644
--- a/source/include/actbl2.h
+++ b/source/include/actbl2.h
@@ -1,7 +1,7 @@
 /******************************************************************************
  *
  * Name: actbl2.h - ACPI Specification Revision 2.0 Tables
- *       $Revision: 1.15 $
+ *       $Revision: 1.16 $
  *
  *****************************************************************************/
 
@@ -117,6 +117,18 @@
 #ifndef __ACTBL2_H__
 #define __ACTBL2_H__
 
+/**************************************/
+/* Prefered Power Management Profiles */
+/**************************************/
+#define PM_UNSPECIFIED        0
+#define PM_DESKTOP            1
+#define PM_MOBILE             2
+#define PM_WORKSTATION        3
+#define PM_ENTERPRISE_SERVER  4
+#define PM_SOHO_SERVER        5
+#define PM_APPLIANCE_PC       6
+
+
 #pragma pack(1)
 
 /*************************************/