diff --git a/common/djangoapps/student/models/course_enrollment.py b/common/djangoapps/student/models/course_enrollment.py
index f4ef557afd..dfacf57064 100644
--- a/common/djangoapps/student/models/course_enrollment.py
+++ b/common/djangoapps/student/models/course_enrollment.py
@@ -287,7 +287,7 @@ class CourseEnrollment(models.Model):
     objects = CourseEnrollmentManager()
 
     # cache key format e.g enrollment.<username>.<course_key>.mode = 'honor'
-    COURSE_ENROLLMENT_CACHE_KEY = "enrollment.{}.{}.mode"  # TODO Can this be removed?  It doesn't seem to be used.
+    COURSE_ENROLLMENT_CACHE_KEY = "enrollment.{}.{}.mode"
 
     MODE_CACHE_NAMESPACE = 'CourseEnrollment.mode_and_active'