diff --git a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
index 68ed10570a52f..4ac93526295aa 100644
--- a/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
+++ b/llvm/lib/Target/AArch64/AArch64Subtarget.cpp
@@ -270,6 +270,7 @@ void AArch64Subtarget::initializeProperties(bool HasMinSize) {
     break;
   case NeoverseV2:
   case NeoverseV3:
+    CacheLineSize = 64;
     EpilogueVectorizationMinVF = 8;
     MaxInterleaveFactor = 4;
     ScatterOverhead = 13;