diff --git a/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts b/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
index ff672409e0087b2bf7b8ae81cc5690bc100ebea9..5259b9cf2d5a20730d4af9205cb6a5227ab8631c 100644
--- a/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
+++ b/src/vs/workbench/parts/terminal/electron-browser/terminalInstance.ts
@@ -488,8 +488,12 @@ export class TerminalInstance implements ITerminalInstance {
 
 	private _sendPtyDataToXterm(message: { type: string, content: string }): void {
 		if (message.type === 'data') {
-			this._widgetManager.closeMessage();
-			this._linkHandler.disposeTooltipListeners();
+			if (this._widgetManager) {
+				this._widgetManager.closeMessage();
+			}
+			if (this._linkHandler) {
+				this._linkHandler.disposeTooltipListeners();
+			}
 			if (this._xterm) {
 				this._xterm.write(message.content);
 			}