diff --git a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibReplaceEntry.S b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibReplaceEntry.S
index e936a5be4e..887439bc04 100644
--- a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibReplaceEntry.S
+++ b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibReplaceEntry.S
@@ -69,17 +69,16 @@
 .L2_\@:
   .endm
 
-  // Align this routine to a log2 upper bound of its size, so that it is
-  // guaranteed not to cross a page or block boundary.
-  .balign 0x200
-
 //VOID
 //ArmReplaceLiveTranslationEntry (
 //  IN  UINT64  *Entry,
 //  IN  UINT64  Value,
 //  IN  UINT64  Address
 //  )
-ASM_FUNC(ArmReplaceLiveTranslationEntry)
+//
+// Align this routine to a log2 upper bound of its size, so that it is
+// guaranteed not to cross a page or block boundary.
+ASM_FUNC_ALIGN(ArmReplaceLiveTranslationEntry, 0x200)
 
   // disable interrupts
   mrs   x4, daif
@@ -101,5 +100,8 @@ ASM_GLOBAL ASM_PFX(ArmReplaceLiveTranslationEntrySize)
 ASM_PFX(ArmReplaceLiveTranslationEntrySize):
   .long   . - ArmReplaceLiveTranslationEntry
 
-  // Double check that we did not overrun the assumed maximum size
+  // Double check that we did not overrun the assumed maximum size or cross a
+  // 0x200 boundary (and thus implicitly not any larger power of two, including
+  // the page size).
+  .balign 0x200
   .org    ArmReplaceLiveTranslationEntry + 0x200