diff --git a/astlpc.c b/astlpc.c
index 65305ea..f8cf42e 100644
--- a/astlpc.c
+++ b/astlpc.c
@@ -1,7 +1,14 @@
 /* SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later */
 
-#include <assert.h>
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if HAVE_ENDIAN_H
 #include <endian.h>
+#endif
+
+#include <assert.h>
 #include <err.h>
 #include <inttypes.h>
 #include <stdbool.h>
@@ -10,10 +17,6 @@
 
 #define pr_fmt(x) "astlpc: " x
 
-#if HAVE_CONFIG_H
-#include "config.h"
-#endif
-
 #include "libmctp.h"
 #include "libmctp-alloc.h"
 #include "libmctp-log.h"
diff --git a/configure.ac b/configure.ac
index 3cde609..42b33f2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -15,6 +15,8 @@
 # libtool init
 LT_INIT
 
+AC_CHECK_HEADERS_ONCE([endian.h])
+
 # pkg-config
 PKG_PROG_PKG_CONFIG
 PKG_INSTALLDIR