diff --git a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c
index 80317923cf..4fc3c92fdb 100644
--- a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c
+++ b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuPeiLibConstructor.c
@@ -47,7 +47,7 @@ ArmMmuPeiLibConstructor (
     // The ArmReplaceLiveTranslationEntry () helper function may be invoked
     // with the MMU off so we have to ensure that it gets cleaned to the PoC
     //
-    WriteBackDataCacheRange (ArmReplaceLiveTranslationEntry,
+    WriteBackDataCacheRange ((VOID *)(UINTN)ArmReplaceLiveTranslationEntry,
       ArmReplaceLiveTranslationEntrySize);
   }