Index: barman/fs.py
--- barman/fs.py.orig
+++ barman/fs.py
@@ -19,6 +19,7 @@
 import logging
 import re
 import shutil
+import sys
 from abc import ABCMeta, abstractmethod
 
 from barman import output
@@ -147,7 +148,7 @@ class UnixLocalCommand(object):
         if not self.exists(path):
             raise FsOperationFailed("Following path does not exist: %s" % path)
         args = ["-c", "%a", path]
-        if self.is_osx():
+        if self.is_osx() or sys.platform.startswith("openbsd"):
             print("is osx")
             args = ["-f", "%Lp", path]
         cmd_ret = self.cmd("stat", args=args)