diff --git a/index.html b/index.html
index 922bd1f..9aa3ea6 100644
--- a/index.html
+++ b/index.html
@@ -24,7 +24,7 @@ <h2>Sections</h2>
     <h2>Instructor</h2>
     <ul>
         <li>Ming Chow, <a href="mailto:ming.chow@tufts.edu">ming.chow@tufts.edu</a></li>
-        <li>Office Hours: Tuesdays, 3:00 - 4:00 PM EST in JCC, third floor --by the kitchen area</li>
+        <li>Office Hours: Tuesdays, 3:00 - 4:00 PM EST in JCC, fourth floor --by the kitchen area</li>
     </ul>
 
     <h2>Prerequisites</h2>