From b33e8fa2a8d63fe75837261dc81ff4c061df433f Mon Sep 17 00:00:00 2001
From: Daniel Imms <daimms@microsoft.com>
Date: Tue, 21 Mar 2017 15:35:27 -0700
Subject: [PATCH] Add null check

Fixes #22913
---
 .../parts/terminal/electron-browser/terminalInstance.ts       | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts b/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
index 1f8736a6098..ff672409e00 100644
--- a/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
+++ b/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
@@ -490,7 +490,9 @@ export class TerminalInstance implements ITerminalInstance {
 		if (message.type === 'data') {
 			this._widgetManager.closeMessage();
 			this._linkHandler.disposeTooltipListeners();
-			this._xterm.write(message.content);
+			if (this._xterm) {
+				this._xterm.write(message.content);
+			}
 		}
 	}