diff --git a/Tools/scripts/patchcheck.py b/Tools/scripts/patchcheck.py
index d9cceb5d5ac..8e59c78a4c5 100755
--- a/Tools/scripts/patchcheck.py
+++ b/Tools/scripts/patchcheck.py
@@ -78,11 +78,14 @@ def get_git_remote_default_branch(remote_name):
     It is typically called 'main', but may differ
     """
     cmd = "git remote show {}".format(remote_name).split()
+    env = os.environ.copy()
+    env['LANG'] = 'C'
     try:
         remote_info = subprocess.check_output(cmd,
                                               stderr=subprocess.DEVNULL,
                                               cwd=SRCDIR,
-                                              encoding='UTF-8')
+                                              encoding='UTF-8',
+                                              env=env)
     except subprocess.CalledProcessError:
         return None
     for line in remote_info.splitlines():