diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index 8db2994cb6..cc7cf1fea3 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -4616,10 +4616,11 @@ class ScheduleSerializer(LaunchConfigurationBaseSerializer, SchedulePreviewSeria
 
     def get_summary_fields(self, obj):
         summary_fields = super(ScheduleSerializer, self).get_summary_fields(obj)
+        if 'inventory' in summary_fields:
+            return summary_fields
+
         inventory = None
-        if obj.inventory:
-            inventory = obj.inventory
-        elif obj.unified_job_template and getattr(obj.unified_job_template, 'inventory', None):
+        if obj.unified_job_template and getattr(obj.unified_job_template, 'inventory', None):
             inventory = obj.unified_job_template.inventory
         else:
             return summary_fields