From e873f94bd43db6dfa61ec9f0f33fe366d025cf6a Mon Sep 17 00:00:00 2001
From: Shavonn Brown <shavonn.brown@grafana.com>
Date: Thu, 16 Apr 2020 11:38:54 -0400
Subject: [PATCH] revent optional event arg change (#23622)

---
 .../grafana-ui/src/components/Forms/Legacy/Switch/Switch.tsx    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/grafana-ui/src/components/Forms/Legacy/Switch/Switch.tsx b/packages/grafana-ui/src/components/Forms/Legacy/Switch/Switch.tsx
index a0c6fc958c2..8a6cbd7225c 100644
--- a/packages/grafana-ui/src/components/Forms/Legacy/Switch/Switch.tsx
+++ b/packages/grafana-ui/src/components/Forms/Legacy/Switch/Switch.tsx
@@ -12,7 +12,7 @@ export interface Props {
   tooltip?: string;
   tooltipPlacement?: PopperJS.Placement;
   transparent?: boolean;
-  onChange: (event?: React.SyntheticEvent<HTMLInputElement>) => void;
+  onChange: (event: React.SyntheticEvent<HTMLInputElement>) => void;
 }
 
 export interface State {