diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index bd481f20e3..8b39357843 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -76,7 +76,8 @@ SUMMARIZABLE_FK_FIELDS = {
                                            'total_inventory_sources',
                                            'inventory_sources_with_failures',
                                            'organization_id',
-                                           'kind'),
+                                           'kind',
+                                           'insights_credential_id',),
     'host': DEFAULT_SUMMARY_FIELDS + ('has_active_failures',
                                       'has_inventory_sources'),
     'group': DEFAULT_SUMMARY_FIELDS + ('has_active_failures',