From e36db1980424e714edb36d9eb81ce035770ee698 Mon Sep 17 00:00:00 2001
From: Luke Manley <lukemanley@gmail.com>
Date: Wed, 2 Mar 2022 19:16:35 -0500
Subject: [PATCH] fix klass name (#46201)

---
 pandas/core/frame.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index 9d17827d55951..b7974e5764100 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -8525,7 +8525,7 @@ def melt(
 
     @doc(
         Series.diff,
-        klass="Dataframe",
+        klass="DataFrame",
         extra_params="axis : {0 or 'index', 1 or 'columns'}, default 0\n    "
         "Take difference over rows (0) or columns (1).\n",
         other_klass="Series",