diff --git a/physics/templates/physics/exam_take.html b/physics/templates/physics/exam_take.html
index 7979b9a5..f9d784b9 100755
--- a/physics/templates/physics/exam_take.html
+++ b/physics/templates/physics/exam_take.html
@@ -123,9 +123,9 @@
                 //    })
                 //})
 
-                let time_limit = '{{exam_time_limit}}'
+                let time_limit = '{{exam.time_limit}}'
                 if (time_limit != "None") {
-                    let end_time = new Date({{cid_user_exam.start_time|date:"U"}}*1000+{{exam.time_limit}}*1000);
+                    let end_time = new Date({{cid_user_exam.start_time|date:"U"}}*1000+parseInt('{{exam.time_limit}}')*1000);
                     initializeClock("clockdiv", end_time);
                 }