diff --git a/commcare_connect/opportunity/api/serializers.py b/commcare_connect/opportunity/api/serializers.py
index a35e6355..7d3bccb3 100644
--- a/commcare_connect/opportunity/api/serializers.py
+++ b/commcare_connect/opportunity/api/serializers.py
@@ -26,6 +26,8 @@ class CommCareAppSerializer(serializers.ModelSerializer):
     organization = serializers.SlugRelatedField(read_only=True, slug_field="slug")
     learn_modules = LearnModuleSerializer(many=True)
     install_url = serializers.SerializerMethodField()
+    passing_score = serializers.IntegerField(default=-1)
+    description = serializers.CharField(default="")
 
     class Meta:
         model = CommCareApp