diff --git a/openedx/core/djangoapps/enrollments/views.py b/openedx/core/djangoapps/enrollments/views.py
index 620575a506..8f4c1f7de0 100644
--- a/openedx/core/djangoapps/enrollments/views.py
+++ b/openedx/core/djangoapps/enrollments/views.py
@@ -1017,7 +1017,7 @@ class CourseEnrollmentsApiListView(DeveloperErrorViewMixin, ListAPIView):
         emails = form.cleaned_data.get("email")
 
         if course_id:
-            queryset = queryset.filter(course_id=course_id)
+            queryset = queryset.filter(course__id=course_id)
         if usernames:
             queryset = queryset.filter(user__username__in=usernames)
         if emails: