diff --git a/python/damask/_config.py b/python/damask/_config.py
index c7e937656..9aa031ff0 100644
--- a/python/damask/_config.py
+++ b/python/damask/_config.py
@@ -115,7 +115,7 @@ class Config(dict):
         """
         Delete item.
 
-        key : dict
+        key : str or scalar
             Label of the key to remove.
         """
         duplicate = self.copy()
diff --git a/python/damask/_rotation.py b/python/damask/_rotation.py
index b7be4f16d..d68cea6d3 100644
--- a/python/damask/_rotation.py
+++ b/python/damask/_rotation.py
@@ -234,18 +234,15 @@ class Rotation:
 
     def apply(self,other):
         """
-        Apply rotation to vector or second/forth order tensor field.
+        Apply rotation to vector, second or fourth order tensor, or rotation object.
 
         Parameters
         ----------
-        other : numpy.ndarray of shape (...,3), (...,3,3), or (...,3,3,3,3)
-            Vector or tensor on which the rotation is apply
+        other : numpy.ndarray of shape (...,3), (...,3,3), or (...,3,3,3,3) or Rotation
+            Vector, tensor, or rotation object on which to apply the rotation.
 
         """
-        if isinstance(other,np.ndarray):
-            return self@other
-        else:
-            raise TypeError('Use "R1*R2" or "R1/R2", to compose rotations')
+        return self@other
 
 
     def __matmul__(self,other):
diff --git a/python/tests/test_Rotation.py b/python/tests/test_Rotation.py
index 3def59213..707bc0210 100644
--- a/python/tests/test_Rotation.py
+++ b/python/tests/test_Rotation.py
@@ -1021,13 +1021,10 @@ class TestRotation:
         R = Rotation.from_random()
         assert R/R == R*R**(-1) == Rotation()
 
-    @pytest.mark.parametrize('vec',[np.ones(3),np.ones((3,3)), np.ones((3,3,3,3))])
-    def test_apply(self,vec):
-        assert (Rotation().from_random().apply(vec)).all()
-
-    def test_apply_invalid(self):
-        with pytest.raises(TypeError):
-            Rotation().apply(Rotation())
+    @pytest.mark.parametrize('item',[Rotation(),np.ones(3),np.ones((3,3)), np.ones((3,3,3,3))])
+    def test_apply(self,item):
+        r = Rotation.from_random()
+        assert r.apply(item) == r@item if isinstance(item,Rotation) else (r.apply(item) == r@item).all()
 
     @pytest.mark.parametrize('angle',[10,20,30,40,50,60,70,80,90,100,120])
     def test_average(self,angle):