diff --git a/archiver_test.go b/archiver_test.go
index 331da66ce..f42bdd71a 100644
--- a/archiver_test.go
+++ b/archiver_test.go
@@ -18,8 +18,6 @@ import (
 var benchArchiveDirectory = flag.String("test.benchdir", ".", "benchmark archiving a real directory (default: .)")
 var testPol = chunker.Pol(0x3DA3358B4DC173)
 
-const chunkerBufSize = 512 * chunker.KiB
-
 type Rdr interface {
 	io.ReadSeeker
 	io.ReaderAt
diff --git a/chunker/chunker.go b/chunker/chunker.go
index a7a5609b7..d39bfc71c 100644
--- a/chunker/chunker.go
+++ b/chunker/chunker.go
@@ -86,8 +86,7 @@ type Chunker struct {
 }
 
 // New returns a new Chunker based on polynomial p that reads from rd
-// with bufsize and pass all data to hash along the way, using buf for
-// buffering.
+// with bufsize and pass all data to hash along the way.
 func New(rd io.Reader, pol Pol, h hash.Hash) *Chunker {
 	c := &Chunker{
 		buf: bufPool.Get().([]byte),