diff --git a/docs/zr_manual.htm b/docs/zr_manual.htm
index e124f0e..4c011e3 100644
--- a/docs/zr_manual.htm
+++ b/docs/zr_manual.htm
@@ -278,9 +278,14 @@ plugin is compatible with all existing Zombie Mod maps.</p>
 	</ul></li>
 	
 	<li>
+		<p><a href="http://forums.alliedmods.net/showthread.php?t=106748">SDK Hooks Extension</a>
+		(version 1.1 or newer). Provides some extra functions needed by Zombie:Reloaded.</p>
+	</li>
+	
+	<!--<li>
 		<p>ZRTools extension (bundled). Provides some extra functions needed by Zombie:Reloaded.
 		See <a href="#2.2">Plugin Installation (2.2)</a>.</p>
-	</li>
+	</li>-->
 </ol>
 
 <h3><a name="2.2" />2.2 Plugin Installation</h3>