diff --git a/modules/townsquare/townsquare_volunteer/js/townsquare_volunteer-session-edit.js b/modules/townsquare/townsquare_volunteer/js/townsquare_volunteer-session-edit.js
index 7640e3b..66cd4ec 100644
--- a/modules/townsquare/townsquare_volunteer/js/townsquare_volunteer-session-edit.js
+++ b/modules/townsquare/townsquare_volunteer/js/townsquare_volunteer-session-edit.js
@@ -55,7 +55,7 @@ Drupal.behaviors.toggleFields = {
       if ($(this).is(':checked')) {
         duration.removeAttr('readonly');
         hours.attr('readonly', true);
-        setDuration('readonly',true);
+        setDuration.attr('readonly',true);
       }
       
     });