From 16dee3cf1c540f9cffbc1a01aa275fb15a143300 Mon Sep 17 00:00:00 2001
From: Sonia Aguilar <33540275+soniaAguilarPeiron@users.noreply.github.com>
Date: Tue, 20 Feb 2024 21:17:40 +0100
Subject: [PATCH] Alerting: Protect possible undefined (#83128)

Protect possible undefined
---
 public/app/core/components/TimelineChart/TimelineChart.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/app/core/components/TimelineChart/TimelineChart.tsx b/public/app/core/components/TimelineChart/TimelineChart.tsx
index 524296eefba..9fb1c4ed748 100644
--- a/public/app/core/components/TimelineChart/TimelineChart.tsx
+++ b/public/app/core/components/TimelineChart/TimelineChart.tsx
@@ -59,7 +59,7 @@ export class TimelineChart extends React.Component<TimelineProps> {
       rowHeight: alignedFrame.fields.length > 2 ? this.props.rowHeight : 1,
       getValueColor: this.getValueColor,
       // @ts-ignore
-      hoverMulti: this.props.tooltip.mode === TooltipDisplayMode.Multi,
+      hoverMulti: this.props.tooltip?.mode === TooltipDisplayMode.Multi,
     });
   };