diff --git a/MdePkg/Library/OldPeiCoreEntryPoint/OldPeiCoreEntryPoint.inf b/MdePkg/Library/OldPeiCoreEntryPoint/OldPeiCoreEntryPoint.inf
index d823425a4d..32aef3447c 100644
--- a/MdePkg/Library/OldPeiCoreEntryPoint/OldPeiCoreEntryPoint.inf
+++ b/MdePkg/Library/OldPeiCoreEntryPoint/OldPeiCoreEntryPoint.inf
@@ -20,7 +20,7 @@
   FILE_GUID                      = 7AA626A3-238A-4c4c-9313-E9F937A744F0
   MODULE_TYPE                    = PEI_CORE
   VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = PeiCoreEntryPoint|PEI_CORE 
+  LIBRARY_CLASS                  = OldPeiCoreEntryPoint|PEI_CORE 
   EDK_RELEASE_VERSION            = 0x00020000
   EFI_SPECIFICATION_VERSION      = 0x00020000