diff --git a/Lib/stat.py b/Lib/stat.py
--- a/Lib/stat.py
+++ b/Lib/stat.py
@@ -108,15 +108,17 @@
 SF_NOUNLINK  = 0x00100000  # file may not be renamed or deleted
 SF_SNAPSHOT  = 0x00200000  # file is a snapshot file
 
+_filetype_table = {
+    S_IFDIR: 'd',
+    S_IFCHR: 'c',
+    S_IFBLK: 'b',
+    S_IFREG: '-',
+    S_IFIFO: 'p',
+    S_IFLNK: 'l',
+    S_IFSOCK: 's',
+}
 
 _filemode_table = (
-    ((S_IFLNK,         "l"),
-     (S_IFREG,         "-"),
-     (S_IFBLK,         "b"),
-     (S_IFDIR,         "d"),
-     (S_IFCHR,         "c"),
-     (S_IFIFO,         "p")),
-
     ((S_IRUSR,         "r"),),
     ((S_IWUSR,         "w"),),
     ((S_IXUSR|S_ISUID, "s"),
@@ -139,6 +141,7 @@
 def filemode(mode):
     """Convert a file's mode to a string of the form '-rwxrwxrwx'."""
     perm = []
+    perm.append(_filetype_table.get(S_IFMT(mode), '?'))
     for table in _filemode_table:
         for bit, char in table:
             if mode & bit == bit: