diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index 9c1cfda7d6271..abf0b55f8bca8 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -10541,13 +10541,14 @@ def _doc_parms(cls):
 skipna : bool, default True
     Exclude NA/null values. If an entire row/column is NA, the result
     will be NA.
-*args, **kwargs :
+*args, **kwargs
     Additional keywords have no effect but might be accepted for
     compatibility with NumPy.
 
 Returns
 -------
 %(name1)s or %(name2)s
+    Return cumulative %(desc)s of %(name1)s or %(name2)s.
 
 See Also
 --------