diff --git a/MdePkg/MdeLibs.dsc.inc b/MdePkg/MdeLibs.dsc.inc
index ddd27115f5..a8c8f4ef36 100644
--- a/MdePkg/MdeLibs.dsc.inc
+++ b/MdePkg/MdeLibs.dsc.inc
@@ -12,6 +12,7 @@
 ##
 
 [LibraryClasses]
+  OrderedCollectionLib|MdePkg/Library/BaseOrderedCollectionRedBlackTreeLib/BaseOrderedCollectionRedBlackTreeLib.inf
   ArmTrngLib|MdePkg/Library/BaseArmTrngLibNull/BaseArmTrngLibNull.inf
   RegisterFilterLib|MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf
   CpuLib|MdePkg/Library/BaseCpuLib/BaseCpuLib.inf