diff --git a/courses/ECSE-4040.html b/courses/ECSE-4040.html
index 5486f4eea..5dd9f7932 100644
--- a/courses/ECSE-4040.html
+++ b/courses/ECSE-4040.html
@@ -128,7 +128,7 @@
                     <li>Tat-Sing Chow</li>
                   </ul>
                   <span class="course-capacity">
-                    Seats Taken: 18/36
+                    Seats Taken: 17/36
                   </span>
                 </div>
               </td>