diff --git a/language/types/integer.xml b/language/types/integer.xml
index 87fb05eb68..74fce6797a 100644
--- a/language/types/integer.xml
+++ b/language/types/integer.xml
@@ -81,7 +81,8 @@ integer     : [+-]?decimal
 
   <para>
    The size of an <type>integer</type> is platform-dependent, although a maximum
-   value of about two billion is the usual value (that's 32 bits signed). PHP
+   value of about two billion is the usual value (that's 32 bits signed).
+   64-bits platforms usually have the maximum value of about 9E18. PHP
    does not support unsigned <type>integer</type>s. <type>Integer</type> size
    can be determined using the constant <constant>PHP_INT_SIZE</constant>, and
    maximum value using the constant <constant>PHP_INT_MAX</constant> since