diff --git a/ch12/index.html b/ch12/index.html
index d3d8981..dd2e18d 100644
--- a/ch12/index.html
+++ b/ch12/index.html
@@ -203,7 +203,7 @@ <h2>12.1. Settings<a class="headerlink" href="#settings" title="Permalink to thi
 <div class="highlight-qml"><div class="highlight"><pre><span class="nx">Settings</span> <span class="p">{</span>
     <span class="k">category:</span> <span class="s1">&#39;window&#39;</span>
     <span class="nx">property</span> <span class="nx">alias</span> <span class="k">x:</span> <span class="nb">window</span><span class="p">.</span><span class="nx">x</span>
-    <span class="nx">property</span> <span class="nx">alias</span> <span class="k">y:</span> <span class="nb">window</span><span class="p">.</span><span class="nx">x</span>
+    <span class="nx">property</span> <span class="nx">alias</span> <span class="k">y:</span> <span class="nb">window</span><span class="p">.</span><span class="nx">y</span>
     <span class="nx">property</span> <span class="nx">alias</span> <span class="k">width:</span> <span class="nb">window</span><span class="p">.</span><span class="nx">width</span>
     <span class="nx">property</span> <span class="nx">alias</span> <span class="k">height:</span> <span class="nb">window</span><span class="p">.</span><span class="nx">height</span>
 <span class="p">}</span>
@@ -400,4 +400,4 @@ <h2>12.3. Other Storage APIs<a class="headerlink" href="#other-storage-apis" tit
 </script>
 
   </body>
-</html>
\ No newline at end of file
+</html>