diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 34c180f38..74e4d093a 100755
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -738,6 +738,9 @@ Bug Fixes
   `#179 <https://github.com/openego/powerd-data/issues/179>`_
 * Fix depricated python-operator import
   `#183 <https://github.com/openego/powerd-data/issues/183>`_
+* Fix incorrect YAML serialization of the --scenarios CLI
+  parameter that caused broken DAGs in the pipeline.
+  `#343 <https://github.com/openego/powerd-data/issues/343>`_
 
 
 .. _PR #692: https://github.com/openego/eGon-data/pull/692
diff --git a/src/egon/data/cli.py b/src/egon/data/cli.py
index f99f29213..d12f59b78 100644
--- a/src/egon/data/cli.py
+++ b/src/egon/data/cli.py
@@ -179,6 +179,7 @@
     default=["status2019", "eGon2035"],
     metavar="SCENARIOS",
     help=("List of scenario names for which a data model shall be created."),
+    multiple=True,
     show_default=True,
 )
 @click.option(