diff --git a/tabby-core/src/components/splitTab.component.ts b/tabby-core/src/components/splitTab.component.ts
index b187fcb3..2cccfddb 100644
--- a/tabby-core/src/components/splitTab.component.ts
+++ b/tabby-core/src/components/splitTab.component.ts
@@ -1,4 +1,4 @@
-import { Observable, Subject, takeUntil, takeWhile } from 'rxjs'
+import { Observable, Subject, takeWhile } from 'rxjs'
 import { Component, Injectable, ViewChild, ViewContainerRef, EmbeddedViewRef, AfterViewInit, OnDestroy, Injector } from '@angular/core'
 import { BaseTabComponent, BaseTabProcess, GetRecoveryTokenOptions } from './baseTab.component'
 import { TabRecoveryProvider, RecoveryToken } from '../api/tabRecovery'