diff --git a/python/damask/_result.py b/python/damask/_result.py
index 50e2aa720..56924c533 100644
--- a/python/damask/_result.py
+++ b/python/damask/_result.py
@@ -391,12 +391,12 @@ class Result:
                     path = (os.path.join(*([prop,name]+([cat] if cat else [])+([item] if item else []))) if split else path)+tag
                     if split:
                         try:
-                            tbl[inc].add(path,data)
+                            tbl[inc] = tbl[inc].add(path,data)
                         except KeyError:
                             tbl[inc] = Table(data.reshape(self.N_materialpoints,-1),{path:data.shape[1:]})
                     else:
                         try:
-                            tbl.add(path,data)
+                            tbl = tbl.add(path,data)
                         except AttributeError:
                             tbl = Table(data.reshape(self.N_materialpoints,-1),{path:data.shape[1:]})
 
diff --git a/python/damask/_table.py b/python/damask/_table.py
index 68d6f94bf..ee64ba017 100644
--- a/python/damask/_table.py
+++ b/python/damask/_table.py
@@ -189,6 +189,11 @@ class Table:
         label : str
             Column label.
 
+        Returns
+        -------
+        data : numpy.ndarray
+            Array of column data.
+
         """
         if re.match(r'[0-9]*?_',label):
             idx,key = label.split('_',1)
@@ -212,6 +217,11 @@ class Table:
         info : str, optional
             Human-readable information about the new data.
 
+        Returns
+        -------
+        table : Table
+            Updated table.
+
         """
         dup = self.copy()
         dup._add_comment(label,data.shape[1:],info)
@@ -238,6 +248,11 @@ class Table:
         info : str, optional
             Human-readable information about the modified data.
 
+        Returns
+        -------
+        table : Table
+            Updated table.
+
         """
         dup = self.copy()
         dup._add_comment(label,data.shape[1:],info)
@@ -261,6 +276,11 @@ class Table:
         label : str
             Column label.
 
+        Returns
+        -------
+        table : Table
+            Updated table.
+
         """
         dup = self.copy()
         dup.data.drop(columns=label,inplace=True)
@@ -279,6 +299,11 @@ class Table:
         label_new : str or iterable of str
             New column label(s).
 
+        Returns
+        -------
+        table : Table
+            Updated table.
+
         """
         dup = self.copy()
         columns = dict(zip([old] if isinstance(old,str) else old,
@@ -300,6 +325,11 @@ class Table:
         ascending : bool or list, optional
             Set sort order.
 
+        Returns
+        -------
+        table : Table
+            Updated table.
+
         """
         dup = self.copy()
         dup._label_discrete()
@@ -320,6 +350,11 @@ class Table:
         other : Table
             Table to append.
 
+        Returns
+        -------
+        table : Table
+            Concatenated table.
+
         """
         if self.shapes != other.shapes or not self.data.columns.equals(other.data.columns):
             raise KeyError('Labels or shapes or order do not match')
@@ -340,6 +375,11 @@ class Table:
         other : Table
             Table to join.
 
+        Returns
+        -------
+        table : Table
+            Joined table.
+
         """
         if set(self.shapes) & set(other.shapes) or self.data.shape[0] != other.data.shape[0]:
             raise KeyError('Dublicated keys or row count mismatch')