diff --git a/CHANGES.rst b/CHANGES.rst
index 8e96ca11..7ecc91b0 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -5,6 +5,9 @@ Changes for croud
 Unreleased
 ==========
 
+- Import jobs can now optionally add columns to the schema if the `create_table`
+  parameter is set to `true`.
+
 1.10.0 - 2023/12/21
 ===================
 
diff --git a/croud/__main__.py b/croud/__main__.py
index e9570ac8..b8e98c7e 100644
--- a/croud/__main__.py
+++ b/croud/__main__.py
@@ -152,7 +152,8 @@
         type=lambda x: bool(strtobool(str(x))),  # noqa
         required=False,
         help="Whether the table should be created automatically"
-        " if it does not exist.",
+        " if it does not exist. If true new columns will also be added when the data"
+        " requires them.",
     ),
     Argument(
         "--transformations",