diff --git a/SignedCapsulePkg/SignedCapsulePkg.dsc b/SignedCapsulePkg/SignedCapsulePkg.dsc
index 862756e233..0da445503b 100644
--- a/SignedCapsulePkg/SignedCapsulePkg.dsc
+++ b/SignedCapsulePkg/SignedCapsulePkg.dsc
@@ -1,7 +1,7 @@
 ## @file
 # This package provides EDKII capsule related support.
 #
-# Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>
 #
 #    SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -150,7 +150,7 @@
 
 [LibraryClasses.common.DXE_SMM_DRIVER]
   HobLib|MdePkg/Library/DxeHobLib/DxeHobLib.inf
-  DebugLib|MdePkg/Library/UefiDebugLibConOut/UefiDebugLibConOut.inf
+  DebugLib|MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull.inf
   MemoryAllocationLib|MdePkg/Library/SmmMemoryAllocationLib/SmmMemoryAllocationLib.inf
   SmmServicesTableLib|MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.inf
   SmmMemLib|MdePkg/Library/SmmMemLib/SmmMemLib.inf