diff --git a/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts b/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts
index 057c4f0328fce..0e9917f1f8313 100644
--- a/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts
+++ b/src/vs/workbench/contrib/terminal/browser/terminalInstance.ts
@@ -159,6 +159,7 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 	private _latestXtermWriteData: number = 0;
 	private _latestXtermParseData: number = 0;
 	private _isExiting: boolean;
+	private _isDisposing: boolean;
 	private _hadFocusOnExit: boolean;
 	private _exitCode: number | undefined;
 	private _exitReason: TerminalExitReason | undefined;
@@ -413,6 +414,7 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 		this._widgetManager = this._register(instantiationService.createInstance(TerminalWidgetManager));
 
 		this._isExiting = false;
+		this._isDisposing = false;
 		this._hadFocusOnExit = false;
 		this._isVisible = false;
 		this._instanceId = TerminalInstance._instanceIdCounter++;
@@ -1292,6 +1294,7 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 			return;
 		}
 		this._logService.trace(`terminalInstance#dispose (instanceId: ${this.instanceId})`);
+		this._isDisposing = true;
 		dispose(this._widgetManager);
 
 		if (this.xterm?.raw.element) {
@@ -2019,7 +2022,7 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 	}
 
 	private async _resize(immediate?: boolean): Promise<void> {
-		if (!this.xterm) {
+		if (!this.xterm || this.isDisposed || this._isDisposing) {
 			return;
 		}