diff --git a/archiver.go b/archiver.go
index 8632b82fd..c3517c0b1 100644
--- a/archiver.go
+++ b/archiver.go
@@ -459,7 +459,7 @@ func (arch *Archiver) dirWorker(wg *sync.WaitGroup, p *Progress, done <-chan str
 	}
 }
 
-type ArchivePipe struct {
+type archivePipe struct {
 	Old <-chan WalkTreeJob
 	New <-chan pipe.Job
 }
@@ -499,7 +499,7 @@ type archiveJob struct {
 	new    pipe.Job
 }
 
-func (a *ArchivePipe) compare(done <-chan struct{}, out chan<- pipe.Job) {
+func (a *archivePipe) compare(done <-chan struct{}, out chan<- pipe.Job) {
 	defer func() {
 		close(out)
 		debug.Log("ArchivePipe.compare", "done")
@@ -638,7 +638,7 @@ func (arch *Archiver) Snapshot(p *Progress, paths []string, pid backend.ID) (*Sn
 		return nil, nil, err
 	}
 
-	jobs := ArchivePipe{}
+	jobs := archivePipe{}
 
 	// use parent snapshot (if some was given)
 	if pid != nil {
diff --git a/archiver_int_test.go b/archiver_int_test.go
index 948d44ba6..d26a9ce53 100644
--- a/archiver_int_test.go
+++ b/archiver_int_test.go
@@ -115,7 +115,7 @@ func TestArchivePipe(t *testing.T) {
 	go testTreeWalker(done, treeCh)
 	go testPipeWalker(done, pipeCh)
 
-	p := ArchivePipe{Old: treeCh, New: pipeCh}
+	p := archivePipe{Old: treeCh, New: pipeCh}
 
 	ch := make(chan pipe.Job)