diff --git a/reactos/lib/cryptlib/util.c b/reactos/lib/cryptlib/util.c
index 9858ec78528..7416faab2de 100644
--- a/reactos/lib/cryptlib/util.c
+++ b/reactos/lib/cryptlib/util.c
@@ -1,6 +1,6 @@
 
 
-#if (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+#if !defined(_MSC_VER) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
 #include <stdlib.h>
 #include <intrin.h>
 
@@ -22,5 +22,5 @@ byteReverse(unsigned char *buf, unsigned longs)
     } while (--longs);
 }
 
-#endif // (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+#endif // !defined(_MSC_VER) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
 
diff --git a/reactos/lib/cryptlib/util.h b/reactos/lib/cryptlib/util.h
index f2e2cf526af..c3c864f428d 100644
--- a/reactos/lib/cryptlib/util.h
+++ b/reactos/lib/cryptlib/util.h
@@ -1,8 +1,7 @@
 
 #pragma once
 
-
-#if (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
+#if defined(_MSC_VER) || (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 #define byteReverse(buf, long)((void)(buf, long))
 #else
 void