diff --git a/StandaloneMmPkg/StandaloneMmPkg.dsc b/StandaloneMmPkg/StandaloneMmPkg.dsc
index 73f3f0f6b1..0c45df95e2 100644
--- a/StandaloneMmPkg/StandaloneMmPkg.dsc
+++ b/StandaloneMmPkg/StandaloneMmPkg.dsc
@@ -1,7 +1,7 @@
 ## @file
 # Standalone MM Platform.
 #
-# Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2015 - 2021, Intel Corporation. All rights reserved.<BR>
 # Copyright (c) 2016 - 2021, Arm Limited. All rights reserved.<BR>
 # Copyright (C) Microsoft Corporation<BR>
 #
@@ -32,6 +32,9 @@
 # Library Class section - list of all Library Classes needed by this Platform.
 #
 ################################################################################
+
+!include MdePkg/MdeLibs.dsc.inc
+
 [LibraryClasses]
   #
   # Basic