diff --git a/packages/vest/src/core/StateMachines/CommonStateMachine.ts b/packages/vest/src/core/StateMachines/CommonStateMachine.ts
index fdfb1adaa..f6f061e72 100644
--- a/packages/vest/src/core/StateMachines/CommonStateMachine.ts
+++ b/packages/vest/src/core/StateMachines/CommonStateMachine.ts
@@ -4,12 +4,13 @@ import { TIsolate } from 'vestjs-runtime';
 export const CommonStates = {
   PENDING: 'PENDING',
   INITIAL: 'INITIAL',
+  DONE: 'DONE',
 };
 
 const State = {
   [CommonStates.PENDING]: CommonStates.PENDING,
   [CommonStates.INITIAL]: CommonStates.INITIAL,
-  DONE: 'DONE',
+  [CommonStates.DONE]: CommonStates.DONE,
 };
 
 export type State = ValueOf<typeof State>;
@@ -28,16 +29,4 @@ const machine: TStateMachine<State> = {
   },
 };
 
-function transition(from: State | undefined, to: State) {
-  return CommonStateMachine.staticTransition(from ?? State.INITIAL, to);
-}
-
-export function setDone(isolate: TIsolate) {
-  isolate.status = transition(isolate.status, State.DONE);
-}
-
-export function setPending(isolate: TIsolate) {
-  isolate.status = transition(isolate.status, State.PENDING);
-}
-
 export const CommonStateMachine = StateMachine<State>(machine);
diff --git a/packages/vest/src/core/VestBus/VestBus.ts b/packages/vest/src/core/VestBus/VestBus.ts
index 311a19ea0..704ce8d8d 100644
--- a/packages/vest/src/core/VestBus/VestBus.ts
+++ b/packages/vest/src/core/VestBus/VestBus.ts
@@ -2,7 +2,6 @@ import { CB, ValueOf } from 'vest-utils';
 import { Bus, RuntimeEvents, TIsolate } from 'vestjs-runtime';
 
 import { Events } from 'BusEvents';
-import * as CommonStateMachine from 'CommonStateMachine';
 import { TIsolateTest } from 'IsolateTest';
 import {
   useExpireSuiteResultCache,
@@ -12,6 +11,7 @@ import {
 import { TFieldName } from 'SuiteResultTypes';
 import { SuiteWalker } from 'SuiteWalker';
 import { TestWalker } from 'TestWalker';
+import { VestIsolate } from 'VestIsolate';
 import { VestTest } from 'VestTest';
 import { useOmitOptionalFields } from 'omitOptionalFields';
 import { useRunDoneCallbacks, useRunFieldCallbacks } from 'runCallbacks';
@@ -41,7 +41,7 @@ export function useInitVestBus() {
       VestTest.setPending(isolate);
     }
 
-    CommonStateMachine.setPending(isolate);
+    VestIsolate.setPending(isolate);
   });
 
   on(RuntimeEvents.ISOLATE_DONE, (isolate: TIsolate) => {
@@ -49,7 +49,7 @@ export function useInitVestBus() {
       VestBus.emit(Events.TEST_COMPLETED, isolate);
     }
 
-    CommonStateMachine.setDone(isolate);
+    VestIsolate.setDone(isolate);
 
     if (!SuiteWalker.hasPending()) {
       // When no more tests are running, emit the done event
diff --git a/packages/vest/src/core/isolate/VestIsolate.ts b/packages/vest/src/core/isolate/VestIsolate.ts
index 99678422a..fb82a991b 100644
--- a/packages/vest/src/core/isolate/VestIsolate.ts
+++ b/packages/vest/src/core/isolate/VestIsolate.ts
@@ -26,6 +26,10 @@ export class VestIsolate {
     this.setStatus(isolate, CommonStates.PENDING);
   }
 
+  static setDone(isolate: TIsolate): void {
+    this.setStatus(isolate, CommonStates.DONE);
+  }
+
   static isPending(isolate: TIsolate): boolean {
     return VestIsolate.statusEquals(isolate, CommonStates.PENDING);
   }