diff --git a/src/lab/exp1/quiz.php b/src/lab/exp1/quiz.php
index 86022f6..1354601 100755
--- a/src/lab/exp1/quiz.php
+++ b/src/lab/exp1/quiz.php
@@ -186,7 +186,7 @@ function getOptions(opt){
 	<?php }?>
 	</form>
 <center><button class="boundingBox1" onclick='window.location="./swf.html";'><strong>Back To Experiment<string></button>
-<t><button class="boundingBox1" onclick='window.location="./index.html";'><strong>Back To Theory<string></button></center>
+<t><button class="boundingBox1" onclick='window.location="./Theory.html";'><strong>Back To Theory<string></button></center>
 
 
 </div>