diff --git a/ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf b/ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf
index 468eb1cda9..7063a25a55 100644
--- a/ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf
+++ b/ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf
@@ -13,7 +13,8 @@
   FILE_GUID                      = da8f0232-fb14-42f0-922c-63104d2c70bd
   MODULE_TYPE                    = BASE
   VERSION_STRING                 = 1.0
-  LIBRARY_CLASS                  = ArmMmuLib
+  # MU_CHANGE - Can't be fully BASE, because it doesn't work in MM_STANDALONE.
+  LIBRARY_CLASS                  = ArmMmuLib | DXE_DRIVER PEIM PEI_CORE DXE_CORE DXE_RUNTIME_DRIVER SEC
 
 [Defines.AARCH64]
   CONSTRUCTOR                    = ArmMmuBaseLibConstructor