diff --git a/fs/rc/job_test.go b/fs/rc/job_test.go
index 0481910de..97de9cc6f 100644
--- a/fs/rc/job_test.go
+++ b/fs/rc/job_test.go
@@ -43,8 +43,10 @@ func TestJobsExpire(t *testing.T) {
 	jobs.Expire()
 	assert.Equal(t, 1, len(jobs.jobs))
 	jobs.mu.Lock()
+	job.mu.Lock()
 	job.EndTime = time.Now().Add(-expireDuration - 60*time.Second)
 	assert.Equal(t, true, jobs.expireRunning)
+	job.mu.Unlock()
 	jobs.mu.Unlock()
 	time.Sleep(10 * time.Millisecond)
 	jobs.mu.Lock()