diff --git a/physics/templates/physics/exam_take.html b/physics/templates/physics/exam_take.html
index 17819ee7..6a70fa15 100755
--- a/physics/templates/physics/exam_take.html
+++ b/physics/templates/physics/exam_take.html
@@ -38,7 +38,7 @@
                         <li data-ans="c">
                             <div class="fieldWrapper">
                                 {{ form.c.errors }}
-                                <label for="{{ form.a.id_for_label }}">{{question.c|safe}}</label>
+                                <label for="{{ form.c.id_for_label }}">{{question.c|safe}}</label>
                                 {{ form.c }}
                             </div>
                         </li>