diff --git a/packages/k8s/src/hooks/prepare-job.ts b/packages/k8s/src/hooks/prepare-job.ts
index 2362523..e5ecf6a 100644
--- a/packages/k8s/src/hooks/prepare-job.ts
+++ b/packages/k8s/src/hooks/prepare-job.ts
@@ -25,6 +25,10 @@ export async function prepareJob(
   args: prepareJobArgs,
   responseFile
 ): Promise<void> {
+  if (!args.container) {
+    throw new Error('Job Container is required.')
+  }
+
   await prunePods()
   if (!(await isAuthPermissionsOK())) {
     throw new Error(
diff --git a/packages/k8s/tests/prepare-job-test.ts b/packages/k8s/tests/prepare-job-test.ts
index 253f36e..00a5759 100644
--- a/packages/k8s/tests/prepare-job-test.ts
+++ b/packages/k8s/tests/prepare-job-test.ts
@@ -69,10 +69,10 @@ describe('Prepare job', () => {
     ).rejects.toThrow()
   })
 
-  it('should run prepare job without the job container', async () => {
+  it('should not run prepare job without the job container', async () => {
     prepareJobData.args.container = undefined
     await expect(
       prepareJob(prepareJobData.args, prepareJobOutputFilePath)
-    ).resolves.not.toThrow()
+    ).rejects.toThrow()
   })
 })