diff --git a/tests/unit/endian.h b/tests/unit/endian.h
deleted file mode 100644
index b42da241..00000000
--- a/tests/unit/endian.h
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copy fron boost 1.43.0
-
-// Copyright 2005 Caleb Epstein
-// Copyright 2006 John Maddock
-// Distributed under the Boost Software License, Version 1.0. (See accompany-
-// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-
-/*
- * Copyright (c) 1997
- * Silicon Graphics Computer Systems, Inc.
- *
- * Permission to use, copy, modify, distribute and sell this software
- * and its documentation for any purpose is hereby granted without fee,
- * provided that the above copyright notice appear in all copies and
- * that both that copyright notice and this permission notice appear
- * in supporting documentation.  Silicon Graphics makes no
- * representations about the suitability of this software for any
- * purpose.  It is provided "as is" without express or implied warranty.
- */
-
-/*
- * Copyright notice reproduced from <boost/detail/limits.hpp>, from
- * which this code was originally taken.
- *
- * Modified by Caleb Epstein to use <endian.h> with GNU libc and to
- * defined the BOOST_ENDIAN macro.
- */
-
-#ifndef BOOST_DETAIL_ENDIAN_HPP
-#define BOOST_DETAIL_ENDIAN_HPP
-
-// GNU libc offers the helpful header <endian.h> which defines
-// __BYTE_ORDER
-
-#if defined(__GLIBC__)
-#include <endian.h>
-#if (__BYTE_ORDER == __LITTLE_ENDIAN)
-#define BOOST_LITTLE_ENDIAN
-#elif (__BYTE_ORDER == __BIG_ENDIAN)
-#define BOOST_BIG_ENDIAN
-#elif (__BYTE_ORDER == __PDP_ENDIAN)
-#define BOOST_PDP_ENDIAN
-#else
-// Failsafe
-#define BOOST_LITTLE_ENDIAN
-#endif
-#define BOOST_BYTE_ORDER __BYTE_ORDER
-#elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)
-#define BOOST_BIG_ENDIAN
-#define BOOST_BYTE_ORDER 4321
-#elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)
-#define BOOST_LITTLE_ENDIAN
-#define BOOST_BYTE_ORDER 1234
-// https://developer.arm.com/documentation/dui0491/i/Compiler-specific-Features/Predefined-macros
-#elif defined(__sparc) || defined(__sparc__) || defined(_POWER) ||             \
-    defined(__powerpc__) || defined(__ppc__) || defined(__hpux) ||             \
-    defined(__hppa) || defined(_MIPSEB) || defined(_POWER) ||                  \
-    defined(__s390__) || defined(__ARMEB__) || defined(__AARCH64EB__) ||       \
-    defined(__BIG_ENDIAN) || defined(__ARM_BIG_ENDIAN)
-#define BOOST_BIG_ENDIAN
-#define BOOST_BYTE_ORDER 4321
-#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__) || defined(__ARMEL__) ||              \
-    defined(__AARCH64EL__) || defined(__arm64__) || defined(__arm__)
-#define BOOST_LITTLE_ENDIAN
-#define BOOST_BYTE_ORDER 1234
-#else
-
-// Failsafe
-#define BOOST_LITTLE_ENDIAN
-#define BOOST_BYTE_ORDER 1234
-
-#endif
-
-#endif
diff --git a/tests/unit/unicorn_test.h b/tests/unit/unicorn_test.h
index cf9ff6f1..ac09843f 100644
--- a/tests/unit/unicorn_test.h
+++ b/tests/unit/unicorn_test.h
@@ -5,7 +5,7 @@
 #include <stdint.h>
 #include <unicorn/unicorn.h>
 #include "acutest.h"
-#include "endian.h"
+#include "config-host.h"
 
 // Copied from glibc-2.29
 
@@ -41,16 +41,16 @@
  */
 #define OK(stat) uc_assert_err(UC_ERR_OK, stat)
 
-#ifdef BOOST_LITTLE_ENDIAN
-#define LEINT32(x) (x)
-#define LEINT64(x) (x)
-#define BEINT32(x) (bswap_32(x))
-#define BEINT64(x) (bswap_64(x))
-#else
+#ifdef BOOST_BIG_ENDIAN
 #define LEINT32(x) (bswap_32(x))
 #define LEINT64(x) (bswap_64(x))
 #define BEINT32(x) (x)
 #define BEINT64(x) (x)
+#else
+#define LEINT32(x) (x)
+#define LEINT64(x) (x)
+#define BEINT32(x) (bswap_32(x))
+#define BEINT64(x) (bswap_64(x))
 #endif
 
 #endif /* UNICORN_TEST_H */