diff --git a/include/rapidjson/rapidjson.h b/include/rapidjson/rapidjson.h
index 053b2ce..1e0b8f3 100644
--- a/include/rapidjson/rapidjson.h
+++ b/include/rapidjson/rapidjson.h
@@ -236,7 +236,7 @@
 #    define RAPIDJSON_ENDIAN RAPIDJSON_BIGENDIAN
 #  elif defined(__i386__) || defined(__alpha__) || defined(__ia64) || defined(__ia64__) || defined(_M_IX86) || defined(_M_IA64) || defined(_M_ALPHA) || defined(__amd64) || defined(__amd64__) || defined(_M_AMD64) || defined(__x86_64) || defined(__x86_64__) || defined(_M_X64) || defined(__bfin__)
 #    define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
-#  elif defined(_MSC_VER) && defined(_M_ARM)
+#  elif defined(_MSC_VER) && (defined(_M_ARM) || defined(_M_ARM64))
 #    define RAPIDJSON_ENDIAN RAPIDJSON_LITTLEENDIAN
 #  elif defined(RAPIDJSON_DOXYGEN_RUNNING)
 #    define RAPIDJSON_ENDIAN