diff --git a/spec/coffeescripts/calendar/EditAssignmentDetailsSpec.js b/spec/coffeescripts/calendar/EditAssignmentDetailsSpec.js
index ba7da72fe6f..9abca2fcadb 100644
--- a/spec/coffeescripts/calendar/EditAssignmentDetailsSpec.js
+++ b/spec/coffeescripts/calendar/EditAssignmentDetailsSpec.js
@@ -258,5 +258,6 @@ test('Should disable changing the date if course pacing is enabled', function ()
   this.event.contextInfo = {course_pacing_enabled: true}
   const view = createView(commonEvent(), this.event)
   view.setContext('course_3')
-  equal(view.$('#assignment_due_at').css('disabled'), '')
+  view.contextChange({target: '#assignment_context'}, false)
+  equal(view.$('#assignment_due_at').prop('disabled'), true)
 })