From 33eef4f9d179929cba32958ad6f83310233a9539 Mon Sep 17 00:00:00 2001
From: Sliman Said <sliman.said@outlook.com>
Date: Fri, 8 Nov 2019 17:20:39 +0100
Subject: [PATCH] [ButtonGroup] Fix typings for disabled classes property
 (#18274)

---
 packages/material-ui/src/ButtonGroup/ButtonGroup.d.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/material-ui/src/ButtonGroup/ButtonGroup.d.ts b/packages/material-ui/src/ButtonGroup/ButtonGroup.d.ts
index fa0899d9e0bd56..745c31d4355a2a 100644
--- a/packages/material-ui/src/ButtonGroup/ButtonGroup.d.ts
+++ b/packages/material-ui/src/ButtonGroup/ButtonGroup.d.ts
@@ -31,7 +31,8 @@ export type ButtonGroupClassKey =
   | 'groupedOutlinedSecondary'
   | 'groupedContained'
   | 'groupedContainedPrimary'
-  | 'groupedContainedSecondary';
+  | 'groupedContainedSecondary'
+  | 'disabled';
 
 export type ButtonGroupProps<
   D extends React.ElementType = ButtonGroupTypeMap['defaultComponent'],