diff -r 439517000aa2 Modules/unicodedata.c
--- a/Modules/unicodedata.c	Sat Apr 18 13:15:10 2015 +0100
+++ b/Modules/unicodedata.c	Sun Apr 19 00:23:10 2015 +0200
@@ -1231,7 +1231,7 @@
 {
     Py_UCS4 code;
     unsigned int index;
-    if (name_length > INT_MAX) {
+    if (name_length > NAME_MAXLEN-1) {
         PyErr_SetString(PyExc_KeyError, "name too long");
         return NULL;
     }