diff --git a/NetworkPkg/IpSecDxe/IkeCommon.c b/NetworkPkg/IpSecDxe/IkeCommon.c
index 96e0d7930b..6fc7c06353 100644
--- a/NetworkPkg/IpSecDxe/IkeCommon.c
+++ b/NetworkPkg/IpSecDxe/IkeCommon.c
@@ -1,7 +1,7 @@
 /** @file
   Common operation of the IKE
   
-  Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2010 - 2015, 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
@@ -22,7 +22,6 @@
 // Initial the SPI
 //
 UINT32            mNextSpi  = IKE_SPI_BASE;
-EFI_GUID          mZeroGuid = { 0, 0, 0, { 0, 0, 0, 0, 0, 0, 0, 0 } };
 
 /**
   Call Crypto Lib to generate a random value with eight-octet length.
diff --git a/NetworkPkg/IpSecDxe/IkeCommon.h b/NetworkPkg/IpSecDxe/IkeCommon.h
index 683264250a..b88331cd86 100644
--- a/NetworkPkg/IpSecDxe/IkeCommon.h
+++ b/NetworkPkg/IpSecDxe/IkeCommon.h
@@ -1,7 +1,7 @@
 /** @file
   Common operation of the IKE.
 
-  Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2010 - 2015, 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
@@ -181,7 +181,6 @@ IkeSearchSpdEntry (
   IN EFI_IPSEC_SPD_SELECTOR             *SpdSel
   );
 
-extern EFI_GUID               mZeroGuid;
 extern MODP_GROUP             OakleyModpGroup[];
 extern IKE_ALG_GUID_INFO      mIPsecEncrAlgInfo[];
 extern IKE_ALG_GUID_INFO      mIPsecAuthAlgInfo[];