diff --git a/MdePkg/Include/Protocol/DevicePath.h b/MdePkg/Include/Protocol/DevicePath.h
index 9a9ad2c089..aa7aec793e 100644
--- a/MdePkg/Include/Protocol/DevicePath.h
+++ b/MdePkg/Include/Protocol/DevicePath.h
@@ -5,7 +5,7 @@
   from a software point of view. The path must persist from boot to boot, so 
   it can not contain things like PCI bus numbers that change from boot to boot.
 
-Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials are licensed and made available under 
 the terms and conditions of the BSD License that accompanies this distribution.  
 The full text of the license may be found at
@@ -509,7 +509,7 @@ typedef struct {
   UINT16                          HBAPortNumber;
   ///
   /// The Port multiplier port number that facilitates the connection
-  /// to the device. Bit 15 should be set if the device is directly
+  /// to the device. Must be set to 0xFFFF if the device is directly
   /// connected to the HBA.
   ///
   UINT16                          PortMultiplierPortNumber;