diff --git a/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.inf b/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.inf
index 900fef5d49..93f3e675a2 100644
--- a/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.inf
+++ b/MdeModulePkg/Library/AuthVariableLibNull/AuthVariableLibNull.inf
@@ -21,7 +21,7 @@
   FILE_GUID                      = 435CB0E4-7C9A-4BB7-9907-8FD4643E978A
   MODULE_TYPE                    = DXE_RUNTIME_DRIVER
   VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = AuthVariableLib|DXE_RUNTIME_DRIVER DXE_SMM_DRIVER
+  LIBRARY_CLASS                  = AuthVariableLib|DXE_RUNTIME_DRIVER DXE_SMM_DRIVER MM_STANDALONE
 
 #
 # The following information is for reference only and not required by the build tools.