diff --git a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c
index 222ff817956f..513a763e6e87 100644
--- a/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c
+++ b/ArmPkg/Library/ArmMmuLib/AArch64/ArmMmuLibCore.c
@@ -649,7 +649,7 @@ ArmMmuBaseLibConstructor (
   // 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);
 
   return RETURN_SUCCESS;