diff --git a/pep-0428.txt b/pep-0428.txt
index 434310ead..4a3c7e640 100644
--- a/pep-0428.txt
+++ b/pep-0428.txt
@@ -584,6 +584,14 @@ Higher-level methods help examine the kind of the file::
     False
     >>> p.is_symlink()
     False
+    >>> p.is_sock()
+    False
+    >>> p.is_fifo()
+    False
+    >>> p.is_block_device()
+    False
+    >>> p.is_char_device()
+    False
 
 The file owner and group names (rather than numeric ids) are queried
 through matching properties::