diff --git a/spiceaidocs/docs/data-connectors/duckdb.md b/spiceaidocs/docs/data-connectors/duckdb.md
index c2c35a9e1..c16e112ca 100644
--- a/spiceaidocs/docs/data-connectors/duckdb.md
+++ b/spiceaidocs/docs/data-connectors/duckdb.md
@@ -58,6 +58,7 @@ datasets:
     params:
       open: path/to/duckdb_function_file.duckdb
 ```
+Note: For DuckDB functions, `params.open` is still required.
 
 Datasets created from DuckDB functions are similar to a standard `SELECT` query. For example: