diff --git a/main.c b/main.c
index faeed43..1505346 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,7 @@
 /* fuse-overlayfs: Overlay Filesystem in Userspace
 
    Copyright (C) 2018 Giuseppe Scrivano <giuseppe@scrivano.org>
+   Copyright (C) 2018-2019 Red Hat Inc.
    Copyright (C) 2001-2007  Miklos Szeredi <miklos@szeredi.hu>
 
    This program is free software: you can redistribute it and/or modify
@@ -3636,12 +3637,12 @@ main (int argc, char *argv[])
         error (EXIT_FAILURE, errno, "cannot allocate memory");
     }
 
-  printf ("UID=%s\n", lo.uid_str ? : "unchanged");
-  printf ("GID=%s\n", lo.gid_str ? : "unchanged");
-  printf ("UPPERDIR=%s\n", lo.upperdir);
-  printf ("WORKDIR=%s\n", lo.workdir);
-  printf ("LOWERDIR=%s\n", lo.lowerdir);
-  printf ("MOUNTPOINT=%s\n", lo.mountpoint);
+  fprintf (stderr, "uid=%s\n", lo.uid_str ? : "unchanged");
+  fprintf (stderr, "uid=%s\n", lo.gid_str ? : "unchanged");
+  fprintf (stderr, "upperdir=%s\n", lo.upperdir);
+  fprintf (stderr, "workdir=%s\n", lo.workdir);
+  fprintf (stderr, "lowerdir=%s\n", lo.lowerdir);
+  fprintf (stderr, "mountpoint=%s\n", lo.mountpoint);
 
   lo.uid_mappings = lo.uid_str ? read_mappings (lo.uid_str) : NULL;
   lo.gid_mappings = lo.gid_str ? read_mappings (lo.gid_str) : NULL;