diff --git a/app/Models/Traits/UsesLinkedFields.php b/app/Models/Traits/UsesLinkedFields.php
index 68be03d2a..6eb9f5288 100644
--- a/app/Models/Traits/UsesLinkedFields.php
+++ b/app/Models/Traits/UsesLinkedFields.php
@@ -225,7 +225,7 @@ private function mapValue($model, string $property, array $linkedFieldInfo)
                 if (empty($resource)) {
                     return $model->$relation;
                 }
-                if (empty($model->$relation)) {
+                if (empty($model->$relation) || !is_iterable($model->$relation)) {
                     return [];
                 }