1 files changed, 2 insertions, 0 deletions
diff --git a/test/run-tests.py b/test/run-tests.py
index 9d01b564..2d4c1da1 100755
--- a/test/run-tests.py
+++ b/test/run-tests.py
@@ -23,6 +23,7 @@ import os
 import re
 import shlex
 import shutil
+import struct
 import subprocess
 import sys
 import threading
@@ -145,6 +146,7 @@ TOOLS = {
             '%(in_file)s',
             '--bindir=%(bindir)s',
             '--no-error-cmdline',
+            '--cflags=-DWABT_BIG_ENDIAN=' + '01'[struct.pack('<h', *struct.unpack('=h', b'\x00\x01'))[0]],
             '-o',
             '%(out_dir)s',
         ]),