diff --git a/lecture5.html b/lecture5.html
index 8583598..722b9a7 100644
--- a/lecture5.html
+++ b/lecture5.html
@@ -600,7 +600,7 @@ <h1>Major Media Types</h1>
       </ul>
     </div>
 
-    <div class="slide">
+    <div class="slide" id="resource-state">
       <hgroup>
         <h1>Resource State</h1>
       </hgroup>
@@ -618,7 +618,7 @@ <h1>Resource State</h1>
       </ul>
     </div>
 
-    <div class="slide" id="resource-state">
+    <div class="slide">
       <hgroup>
         <h1>Resource State Example</h1>
       </hgroup>
@@ -751,7 +751,7 @@ <h1>GET</h1>
           <li>It is <b>idempotent</b></li>
           <li class="space-before"><code>GET</code> retrieves different states over time but
             the effect is always the same, cf.
-            <a href="lecture2.html#/resource-state">resource state</a> hence it is idempotent.
+            <a href="lecture5.html#/resource-state">resource state</a> hence it is idempotent.
           </li>
           <li>Invocation of <code>GET</code> involves content negotiation</li>
         </ul>