diff --git a/StdLib/LibC/String/Copying.c b/StdLib/LibC/String/Copying.c
index e27519e24c..96be24b9a9 100644
--- a/StdLib/LibC/String/Copying.c
+++ b/StdLib/LibC/String/Copying.c
@@ -19,12 +19,12 @@
 #include  <stdlib.h>
 #include  <string.h>
 
-/** Do not define memcpy for IPF+GCC or ARM+GCC builds.
+/** Do not define memcpy for IPF+GCC or ARM/AARCH64+GCC builds.
     For IPF, using a GCC compiler, the memcpy function is converted to
     CopyMem by objcpy during build.
-    For ARM, the memcpy function is provided by the CompilerIntrinsics library.
+    For ARM/AARCH64, the memcpy function is provided by the CompilerIntrinsics library.
 **/
-#if !((defined(MDE_CPU_IPF) || defined(MDE_CPU_ARM)) && defined(__GNUC__))
+#if !((defined(MDE_CPU_IPF) || defined(MDE_CPU_ARM) || defined(MDE_CPU_AARCH64)) && defined(__GNUC__))
 /** The memcpy function copies n characters from the object pointed to by s2
     into the object pointed to by s1.