diff --git a/Doc/api/concrete.tex b/Doc/api/concrete.tex
index f82f7c7..cacefb1 100644
--- a/Doc/api/concrete.tex
+++ b/Doc/api/concrete.tex
@@ -156,7 +156,7 @@
   Create a new integer object with a value of \var{ival}.
 
   The current implementation keeps an array of integer objects for all
-  integers between \code{-1} and \code{100}, when you create an int in
+  integers between \code{-5} and \code{256}, when you create an int in
   that range you actually just get back a reference to the existing
   object. So it should be possible to change the value of \code{1}.  I
   suspect the behaviour of Python in this case is undefined. :-)