diff --git a/lms/djangoapps/course_home_api/progress/v1/serializers.py b/lms/djangoapps/course_home_api/progress/v1/serializers.py
index 13586fc0fc..718dd5386f 100644
--- a/lms/djangoapps/course_home_api/progress/v1/serializers.py
+++ b/lms/djangoapps/course_home_api/progress/v1/serializers.py
@@ -89,7 +89,7 @@ class GradingPolicySerializer(serializers.Serializer):
     def get_assignment_policies(self, grading_policy):
         return [{
             'num_droppable': assignment_policy['drop_count'],
-            'num_total': assignment_policy['min_count'],
+            'num_total': float(assignment_policy['min_count']),
             'short_label': assignment_policy.get('short_label', ''),
             'type': assignment_policy['type'],
             'weight': assignment_policy['weight'],