diff --git a/docs.html b/docs.html
index 7b1f3a2c..d238dc27 100644
--- a/docs.html
+++ b/docs.html
@@ -236,7 +236,7 @@ <h1><a href="http://github.com/aheckmann/gm">gm <small>v1.9.0</small></a>
             <pre><code>gm("img.png").deconstruct()</code></pre>
           </li>
           <li id="define"><a href="http://www.graphicsmagick.org/GraphicsMagick.html#details-define">define</a>
-            <pre><code>gm("img.png").define()</code></pre>
+            <pre><code>gm("img.png").define(value)</code></pre>
           </li>
           <li id="delay"><a href="http://www.graphicsmagick.org/GraphicsMagick.html#details-delay">delay</a>
             <p>`amount` is in hundreths of a second.</p>