diff --git a/src/module-elasticsuite-catalog/Model/Product/Indexer/Fulltext/Datasource/AttributeData.php b/src/module-elasticsuite-catalog/Model/Product/Indexer/Fulltext/Datasource/AttributeData.php
index 269180b91..028714e4f 100644
--- a/src/module-elasticsuite-catalog/Model/Product/Indexer/Fulltext/Datasource/AttributeData.php
+++ b/src/module-elasticsuite-catalog/Model/Product/Indexer/Fulltext/Datasource/AttributeData.php
@@ -152,7 +152,9 @@ private function addRelationData(&$parentData, $childAttributes, $relation)
 
             $configurableAttributesCodes = array_map(
                 function ($attributeId) {
-                    return $this->attributesById[(int) $attributeId]->getAttributeCode();
+                    if (isset($this->attributesById[(int) $attributeId])) { 
+                        return $this->attributesById[(int) $attributeId]->getAttributeCode();
+                    }
                 },
                 $relation['configurable_attributes']
             );