diff --git a/openedx/core/djangoapps/courseware_api/serializers.py b/openedx/core/djangoapps/courseware_api/serializers.py
index aadd2b1ae9..85028a5604 100644
--- a/openedx/core/djangoapps/courseware_api/serializers.py
+++ b/openedx/core/djangoapps/courseware_api/serializers.py
@@ -75,7 +75,7 @@ class CourseProgramSerializer(serializers.Serializer):  # lint-amnesty, pylint:
 
 class PrerequisiteCourseSerializer(serializers.Serializer):
     """
-    Serializer for prerequisite course data with key and display name.
+    Serializer for prerequisite course data with the serialized course key and display name.
     """
     key = serializers.CharField()
     display = serializers.CharField()