diff --git a/ArmVirtPkg/HighMemDxe/HighMemDxe.c b/ArmVirtPkg/HighMemDxe/HighMemDxe.c
index 4963164fbd..7fd7e8e9a5 100644
--- a/ArmVirtPkg/HighMemDxe/HighMemDxe.c
+++ b/ArmVirtPkg/HighMemDxe/HighMemDxe.c
@@ -74,7 +74,7 @@ InitializeHighMemDxe (
         CurBase = fdt64_to_cpu (((UINT64 *)RegProp)[0]);
         CurSize = fdt64_to_cpu (((UINT64 *)RegProp)[1]);
 
-        if (FixedPcdGet64 (PcdSystemMemoryBase) != CurBase) {
+        if (PcdGet64 (PcdSystemMemoryBase) != CurBase) {
           Status = gDS->AddMemorySpace (
                           EfiGcdMemoryTypeSystemMemory,
                           CurBase, CurSize,
diff --git a/ArmVirtPkg/HighMemDxe/HighMemDxe.inf b/ArmVirtPkg/HighMemDxe/HighMemDxe.inf
index 2b397626a4..ae632a8bee 100644
--- a/ArmVirtPkg/HighMemDxe/HighMemDxe.inf
+++ b/ArmVirtPkg/HighMemDxe/HighMemDxe.inf
@@ -45,7 +45,7 @@
 [Guids]
   gFdtHobGuid
 
-[FixedPcd]
+[Pcd]
   gArmTokenSpaceGuid.PcdSystemMemoryBase
 
 [Depex]