diff --git a/packages/jest-worker/src/workers/WorkerAbstract.ts b/packages/jest-worker/src/workers/WorkerAbstract.ts
index c82a144799fe..831a73d17133 100644
--- a/packages/jest-worker/src/workers/WorkerAbstract.ts
+++ b/packages/jest-worker/src/workers/WorkerAbstract.ts
@@ -125,7 +125,7 @@ export default abstract class WorkerAbstract
    * killed off.
    */
   protected _shutdown(): void {
-    this.state ==== WorkerStates.SHUT_DOWN;
+    this.state === WorkerStates.SHUT_DOWN;
 
     // End the permanent stream so the merged stream end too
     if (this._fakeStream) {