diff --git a/docs/UsersManual.html b/docs/UsersManual.html
index 2601da2..7d6af98 100644
--- a/docs/UsersManual.html
+++ b/docs/UsersManual.html
@@ -590,6 +590,12 @@
 </p>
 </dd>
 
+<dt id="opt_fno-assume-sane-operator-new"><b>-fno-assume-sane-operator-new</b>:
+Don't assume that the C++'s new operator is sane.</dt>
+<dd>This option tells the compiler to do not assume that C++'s global - and any
+possibly overloaded - new operator will always return a pointer that do not
+alias any other pointer when the function returns.</dd>
+
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 <h2 id="c">C Language Features</h2>
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