diff --git a/Contrib/InstallOptions/Readme.html b/Contrib/InstallOptions/Readme.html
index b5e5b8e4..87f646c9 100644
--- a/Contrib/InstallOptions/Readme.html
+++ b/Contrib/InstallOptions/Readme.html
@@ -449,7 +449,7 @@ FunctionEnd
 </pre>
 <p class="subheader">Call the DLL</p>
 <p class="text">You can call InstallOptions in a page function,
-check the <a href="..\..\Docs\Chapter3.html#3.5">NSIS documentation</a>
+check the <a href="..\..\Docs\Chapter4.html#4.5">NSIS documentation</a>
 for information about the page system. Example:</p>
 <pre class="margin">
 Page custom SetCustom ValidateCustom