diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index 34b448a0d8d1c..02878b36a379e 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -5009,7 +5009,7 @@ def assign(self, **kwargs) -> DataFrame:
 
         Parameters
         ----------
-        **kwargs : dict of {str: callable or Series}
+        **kwargs : callable or Series
             The column names are keywords. If the values are
             callable, they are computed on the DataFrame and
             assigned to the new columns. The callable must not