diff --git a/python/damask/_config.py b/python/damask/_config.py
index 85f0c208c..5be1d973c 100644
--- a/python/damask/_config.py
+++ b/python/damask/_config.py
@@ -6,6 +6,9 @@ import abc
 import numpy as np
 import yaml
 
+from . import Rotation
+from . import Orientation
+
 class NiceDumper(yaml.SafeDumper):
     """Make YAML readable for humans."""
 
@@ -20,8 +23,12 @@ class NiceDumper(yaml.SafeDumper):
 
     def represent_data(self, data):
         """Cast Config objects and its subclasses to dict."""
-        return self.represent_data(dict(data)) if isinstance(data, dict) and type(data) != dict else \
-               super().represent_data(data)
+        if isinstance(data, dict) and type(data) != dict:
+            return self.represent_data(dict(data))
+        if isinstance(data, (Rotation, Orientation)):
+            return self.represent_data(data.as_quaternion())
+        else:
+            return super().represent_data(data)
 
     def ignore_aliases(self, data):
         """No references."""
diff --git a/python/tests/test_Config.py b/python/tests/test_Config.py
index 9324c28c5..c64573d93 100644
--- a/python/tests/test_Config.py
+++ b/python/tests/test_Config.py
@@ -2,6 +2,8 @@ import pytest
 import numpy as np
 
 from damask import Config
+from damask import Rotation
+from damask import Orientation
 
 class TestConfig:
 
@@ -51,3 +53,7 @@ class TestConfig:
 
     def test_abstract_is_complete(self):
         assert Config().is_complete is None
+    
+    @pytest.mark.parametrize('data',[Rotation.from_random(),Orientation.from_random()])
+    def test_rotation_orientation(self,data):
+        assert str(Config(a=data)) == str(Config(a=data.as_quaternion()))