diff --git a/src/saveweb_tracker/tracker.go b/src/saveweb_tracker/tracker.go
index 5f8edf6..3ccc377 100644
--- a/src/saveweb_tracker/tracker.go
+++ b/src/saveweb_tracker/tracker.go
@@ -60,8 +60,8 @@ type Tracker struct {
 	client_version string
 	project_id     string
 	archivist      string
-	http_client    *http.Client
-	ping_client    *http.Client
+	HTTP_client    *http.Client
+	PING_client    *http.Client
 
 	_claim_wait_lock sync.Mutex
 
@@ -113,7 +113,7 @@ func (t *Tracker) SelectBestTracker() *Tracker {
 
 	for _, node := range TRACKER_NODES {
 		go func(ctx context.Context, node string) {
-			elapsed, resp, err := GetPing(ctx, t.ping_client, node)
+			elapsed, resp, err := GetPing(ctx, t.PING_client, node)
 			if err != nil {
 				if ctx.Err() == context.Canceled {
 					return
@@ -169,11 +169,11 @@ func (t *Tracker) StartSelectTrackerBackground() *Tracker {
 func GetTracker(project_id string, client_version string, archivist string) *Tracker {
 	t := &Tracker{
 		API_VERSION: "v1",
-		ping_client: &http.Client{
+		PING_client: &http.Client{
 			Timeout: 10 * time.Second,
 		},
 		project_id: project_id,
-		http_client: &http.Client{
+		HTTP_client: &http.Client{
 			Timeout: 120 * time.Second,
 		},
 		client_version: client_version,
diff --git a/src/saveweb_tracker/tracker_project.go b/src/saveweb_tracker/tracker_project.go
index acc00ad..96cae83 100644
--- a/src/saveweb_tracker/tracker_project.go
+++ b/src/saveweb_tracker/tracker_project.go
@@ -48,7 +48,7 @@ func (t *Tracker) FetchProject(timeout time.Duration) (proj *Project, err error)
 		log.Print(err)
 		return nil, err
 	}
-	r, err := t.http_client.Do(req)
+	r, err := t.HTTP_client.Do(req)
 	if err != nil {
 		log.Print(err)
 		return nil, err
diff --git a/src/saveweb_tracker/tracker_task.go b/src/saveweb_tracker/tracker_task.go
index 89305d6..2714780 100644
--- a/src/saveweb_tracker/tracker_task.go
+++ b/src/saveweb_tracker/tracker_task.go
@@ -57,7 +57,7 @@ func (t *Tracker) ClaimTask(with_delay bool) *Task {
 		time.Sleep(time.Duration(t.Project().Client.ClaimTaskDelay) * time.Second)
 		t._claim_wait_lock.Unlock()
 	}
-	resp, err := t.http_client.Post(t.API_BASE+t.API_VERSION+"/project/"+t.project_id+"/"+t.client_version+"/"+t.archivist+"/claim_task", "", nil)
+	resp, err := t.HTTP_client.Post(t.API_BASE+t.API_VERSION+"/project/"+t.project_id+"/"+t.client_version+"/"+t.archivist+"/claim_task", "", nil)
 	if err != nil {
 		panic(err)
 	}
@@ -107,7 +107,7 @@ func (t *Tracker) UpdateTask(task_id string, id_type string, to_status Status) s
 		panic("invalid status")
 	}
 
-	resp, err := t.http_client.Post(t.API_BASE+t.API_VERSION+"/project/"+t.project_id+"/"+t.client_version+"/"+t.archivist+"/update_task/"+task_id, "application/x-www-form-urlencoded", strings.NewReader(postData.Encode()))
+	resp, err := t.HTTP_client.Post(t.API_BASE+t.API_VERSION+"/project/"+t.project_id+"/"+t.client_version+"/"+t.archivist+"/update_task/"+task_id, "application/x-www-form-urlencoded", strings.NewReader(postData.Encode()))
 	if err != nil {
 		panic(err)
 	}
@@ -209,7 +209,7 @@ func (t *Tracker) InsertItem(task Task, item_status string, status_type string,
 
 	fmt.Println(req.Header)
 
-	resp, err := t.http_client.Do(req)
+	resp, err := t.HTTP_client.Do(req)
 	if err != nil {
 		panic(err)
 	}