diff --git a/lib_main/tests/eio_stat.ml b/lib_main/tests/eio_stat.ml
index dea3e5f9a..d333490fc 100644
--- a/lib_main/tests/eio_stat.ml
+++ b/lib_main/tests/eio_stat.ml
@@ -6,6 +6,14 @@ let pp_time f t =
     (tm.Unix.tm_year + 1900) (tm.Unix.tm_mon + 1) tm.Unix.tm_mday
     tm.Unix.tm_hour tm.Unix.tm_min tm.Unix.tm_sec
 
+let pp_perm_hum ppf v =
+  let rwx i = ((i land 4) = 4), ((i land 2) = 2), (i land 1 = 1) in
+  let pp_rwx ppf (r, w, x) =
+    let is_set c v = if v then c else "-" in
+    Format.fprintf ppf "%s%s%s" (is_set "r" r) (is_set "w" w) (is_set "x" x);
+  in
+  Format.fprintf ppf "%a%a%a" pp_rwx (rwx (v lsr 6)) pp_rwx (rwx (v lsr 3)) pp_rwx (rwx v)
+
 let run_stat fs fname =
   let open Eio in
   let path = Path.(fs / fname) in
@@ -14,7 +22,7 @@ let run_stat fs fname =
     | _ -> ""  in
   Path.stat ~follow:false path File.[Kind; Size; Dev; Ino; Nlink; Perm; Uid; Gid; Atime; Mtime; Ctime]
     (fun kind size dev ino nlink perm uid gid atime mtime ctime ->
-      Format.printf "  File: %s%s\n  Size: %Lu\t\t %a\nDevice: %Lu\tInode: %Lu\tLinks: %Lu\nAccess: (%04o/TODO)\tUid: (%Lu/TODO)\tGid: (%Lu/TODO)\nAccess: %a\nModify: %a\nChange: %a\n%!"
+      Format.printf "  File: %s%s\n  Size: %Lu\t\tFileType: %a\nDevice: %Lu\tInode: %Lu\tLinks: %Lu\nMode: (%04o/-%a)\tUid: (%Lu/TODO)\tGid: (%Lu/TODO)\nAccess: %a\nModify: %a\nChange: %a\n%!"
         fname (opt_symlink kind)
         size
         Eio.File.pp_kind kind
@@ -22,6 +30,8 @@ let run_stat fs fname =
         ino
         nlink
         perm
+        pp_perm_hum
+        perm
         uid
         gid
         pp_time atime