diff --git a/sp2324/index.html b/sp2324/index.html
index 6ef0449..398de21 100644
--- a/sp2324/index.html
+++ b/sp2324/index.html
@@ -369,7 +369,7 @@ <h3>Schedule</h3>
                 <span style="font-style:italic">Wednesday: Project video presentation and final report due</span>
               </td>
               <td class="tg-vnl4">
-                <!-- <a href="pdfs/lecture/lecture_18.pdf">Lecture 18</a> -->
+                <a href="pdfs/lecture/lecture_18.pdf">Lecture 18</a>
                 <!-- <br> -->
                 <!-- <a href="pdfs/lecture/lecture_19a.pdf">Course summary (optimal control)</a> -->
                 <!-- <br> -->