diff --git a/pkg/cloudcommon/db/db_dispatcher.go b/pkg/cloudcommon/db/db_dispatcher.go
index 4837bd9545..956d2f9223 100644
--- a/pkg/cloudcommon/db/db_dispatcher.go
+++ b/pkg/cloudcommon/db/db_dispatcher.go
@@ -829,8 +829,6 @@ func getModelItemDetails(manager IModelManager, item IModel, ctx context.Context
 func getItemDetails(manager IModelManager, item IModel, ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) (jsonutils.JSONObject, error) {
 	metaFields, excludeFields := GetDetailFields(manager, userCred)
 	fieldFilter := jsonutils.GetQueryStringArray(query, "field")
-	getFields := mergeFields(metaFields, fieldFilter, IsAllowGet(rbacutils.ScopeSystem, userCred, item))
-	excludes, _, _ := stringutils2.Split(stringutils2.NewSortedStrings(excludeFields), getFields)
 
 	var sortedListFields stringutils2.SSortedStrings
 	if len(fieldFilter) > 0 {
@@ -841,6 +839,8 @@ func getItemDetails(manager IModelManager, item IModel, ctx context.Context, use
 		return nil, errors.Wrap(err, "FetchCustomizeColumns")
 	}
 	if len(extraRows) == 1 {
+		getFields := mergeFields(metaFields, fieldFilter, IsAllowGet(rbacutils.ScopeSystem, userCred, item))
+		excludes, _, _ := stringutils2.Split(stringutils2.NewSortedStrings(excludeFields), getFields)
 		return extraRows[0].CopyExcludes(excludes...), nil
 	}
 	log.Errorf("FetchCustomizeColumns return incorrect number of objects %d", len(extraRows))