diff --git a/vendor/manifest b/vendor/manifest
index ad62891ce..caa0dfe31 100644
--- a/vendor/manifest
+++ b/vendor/manifest
@@ -58,8 +58,8 @@
 		{
 			"importpath": "github.com/restic/chunker",
 			"repository": "https://github.com/restic/chunker",
-			"revision": "49e9b5212b022a1ab373faf981ed4f2fc807502a",
-			"branch": "master"
+			"revision": "bb2ecf9a98e35a0b336ffc23fc515fb6e7961577",
+			"branch": "HEAD"
 		},
 		{
 			"importpath": "github.com/spf13/cobra",
diff --git a/vendor/src/github.com/restic/chunker/chunker.go b/vendor/src/github.com/restic/chunker/chunker.go
index 038985f3f..58e87ea6b 100644
--- a/vendor/src/github.com/restic/chunker/chunker.go
+++ b/vendor/src/github.com/restic/chunker/chunker.go
@@ -85,8 +85,7 @@ type Chunker struct {
 	chunkerState
 }
 
-// New returns a new Chunker based on polynomial p that reads from rd
-// with bufsize and pass all data to hash along the way.
+// New returns a new Chunker based on polynomial p that reads from rd.
 func New(rd io.Reader, pol Pol) *Chunker {
 	c := &Chunker{
 		chunkerState: chunkerState{
@@ -141,8 +140,8 @@ func (c *Chunker) reset() {
 	c.pre = c.MinSize - windowSize
 }
 
-// Calculate out_table and mod_table for optimization. Must be called only
-// once. This implementation uses a cache in the global variable cache.
+// fillTables calculates out_table and mod_table for optimization. This
+// implementation uses a cache in the global variable cache.
 func (c *Chunker) fillTables() {
 	// if polynomial hasn't been specified, do not compute anything for now
 	if c.pol == 0 {