diff --git a/MdePkg/Library/UefiRuntimeServicesTableLib/UefiRuntimeServicesTableLib.inf b/MdePkg/Library/UefiRuntimeServicesTableLib/UefiRuntimeServicesTableLib.inf
index d467251bdb..32cb8331a9 100644
--- a/MdePkg/Library/UefiRuntimeServicesTableLib/UefiRuntimeServicesTableLib.inf
+++ b/MdePkg/Library/UefiRuntimeServicesTableLib/UefiRuntimeServicesTableLib.inf
@@ -20,7 +20,7 @@
   FILE_GUID                      = 19cbbb97-ff61-45ff-8c3f-dfa66dd118c8
   MODULE_TYPE                    = DXE_DRIVER
   VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = UefiRuntimeServicesTableLib|DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SAL_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER 
+  LIBRARY_CLASS                  = UefiRuntimeServicesTableLib|DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SAL_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER 
   EDK_RELEASE_VERSION            = 0x00020000
   EFI_SPECIFICATION_VERSION      = 0x00020000