diff --git a/integrations/elasticsearch/src/haystack_integrations/document_stores/elasticsearch/document_store.py b/integrations/elasticsearch/src/haystack_integrations/document_stores/elasticsearch/document_store.py
index 11016e3fc..a838c876e 100644
--- a/integrations/elasticsearch/src/haystack_integrations/document_stores/elasticsearch/document_store.py
+++ b/integrations/elasticsearch/src/haystack_integrations/document_stores/elasticsearch/document_store.py
@@ -66,6 +66,7 @@ def __init__(
         custom_mapping: Optional[Dict[str, Any]] = None,
         index: str = "default",
         embedding_similarity_function: Literal["cosine", "dot_product", "l2_norm", "max_inner_product"] = "cosine",
+        julias_param: str = "hallo",
         **kwargs,
     ):
         """