diff --git a/integrations/pgvector/src/haystack_integrations/document_stores/pgvector/document_store.py b/integrations/pgvector/src/haystack_integrations/document_stores/pgvector/document_store.py
index 50dd87a25..a02c46200 100644
--- a/integrations/pgvector/src/haystack_integrations/document_stores/pgvector/document_store.py
+++ b/integrations/pgvector/src/haystack_integrations/document_stores/pgvector/document_store.py
@@ -388,7 +388,7 @@ def filter_documents(self, filters: Optional[Dict[str, Any]] = None) -> List[Doc
                 msg = "Filters must be a dictionary"
                 raise TypeError(msg)
             if "operator" not in filters and "conditions" not in filters:
-                msg = "Legacy filters support has been removed. Please see documentation for new filter syntax."
+                msg = "Invalid filter syntax. See https://docs.haystack.deepset.ai/docs/metadata-filtering for details."
                 raise ValueError(msg)
 
         sql_filter = SQL("SELECT * FROM {table_name}").format(table_name=Identifier(self.table_name))