--- FilesCheck.py
+++ FilesCheck.py
@@ -286,7 +286,7 @@
     istext = float(len(t))/len(chunk) <= 0.30
     return (chunk, istext)
 
-# See Python/import.c (in the trunk and py3k branches) for a full list of
+# See Python/import.c (in the default and 2.x branches) for a full list of
 # the values here.
 _python_magic_values = {
     '2.2': 60717,
@@ -298,7 +298,7 @@
     '3.0': 3130,
     '3.1': 3150,
     '3.2': 3180,
-    '3.3': 3190,
+    '3.3': 3230,
     }
 
 def get_expected_pyc_magic(path):