diff --git a/src/vs/workbench/contrib/terminal/browser/terminalEditorService.ts b/src/vs/workbench/contrib/terminal/browser/terminalEditorService.ts
index 8b4905961a4965fffc946a7e560fc3c77b712c9e..d05aa1b303d2f810d2765bd8bfa97bdab606a446 100644
--- a/src/vs/workbench/contrib/terminal/browser/terminalEditorService.ts
+++ b/src/vs/workbench/contrib/terminal/browser/terminalEditorService.ts
@@ -215,7 +215,6 @@ export class TerminalEditorService extends Disposable implements ITerminalEditor
 		this._editorInputs.set(inputKey, input);
 		this._instanceDisposables.set(inputKey, [
 			instance.onDidFocus(this._onDidFocusInstance.fire, this._onDidFocusInstance),
-			toDisposable(() => this._editorInputs.delete(inputKey)),
 			instance.onDisposed(this._onDidDisposeInstance.fire, this._onDidDisposeInstance)
 		]);
 		this.instances.push(instance);