diff --git a/pkg/donutbox/donutbox.go b/pkg/donutbox/donutbox.go
index 72622ad2e..d517f6fbe 100644
--- a/pkg/donutbox/donutbox.go
+++ b/pkg/donutbox/donutbox.go
@@ -14,7 +14,7 @@ type DonutBox interface {
 	SetBucketMetadata(bucket string, metadata map[string]string) error
 
 	// object operations
-	GetObjectWriter(bucket, object string, column, blockSize uint) (*NewObject, error)
+	GetObjectWriter(bucket, object string, column uint) (*NewObject, error)
 	GetObjectReader(bucket, object string, column uint) (io.Reader, error)
 	GetObjectMetadata(bucket, object string, column uint) (map[string]string, error)
 }
diff --git a/pkg/donutbox/donutmem/donutmem.go b/pkg/donutbox/donutmem/donutmem.go
index 28dcd4f19..0fe4799ad 100644
--- a/pkg/donutbox/donutmem/donutmem.go
+++ b/pkg/donutbox/donutmem/donutmem.go
@@ -125,7 +125,7 @@ func (donutMem donutMem) SetBucketMetadata(bucketKey string, metadata map[string
 }
 
 // object operations
-func (donutMem donutMem) GetObjectWriter(bucketKey, objectKey string, column uint, blockSize uint) (*donutbox.NewObject, error) {
+func (donutMem donutMem) GetObjectWriter(bucketKey, objectKey string, column uint) (*donutbox.NewObject, error) {
 	key := getKey(bucketKey, objectKey, column)
 	reader, writer := io.Pipe()
 	returnObject := donutbox.CreateNewObject(writer)
diff --git a/pkg/donutbox/donutmem/donutmem_test.go b/pkg/donutbox/donutmem/donutmem_test.go
index 2b1ac475d..a0c66853d 100644
--- a/pkg/donutbox/donutmem/donutmem_test.go
+++ b/pkg/donutbox/donutmem/donutmem_test.go
@@ -19,14 +19,14 @@ func (s *MySuite) TestCreateAndReadObject(c *C) {
 	data := "Hello World"
 	donut := NewDonutMem()
 
-	writer, err := donut.GetObjectWriter("foo", "bar", 0, 2)
+	writer, err := donut.GetObjectWriter("foo", "bar", 0)
 	c.Assert(writer, IsNil)
 	c.Assert(err, Not(IsNil))
 
 	err = donut.CreateBucket("foo")
 	c.Assert(err, IsNil)
 
-	writer, err = donut.GetObjectWriter("foo", "bar", 0, 2)
+	writer, err = donut.GetObjectWriter("foo", "bar", 0)
 	c.Assert(err, IsNil)
 	count, err := writer.Write([]byte(data))
 	c.Assert(count, Equals, len(data))
@@ -41,7 +41,7 @@ func (s *MySuite) TestCreateAndReadObject(c *C) {
 	c.Assert(result, DeepEquals, []byte(data))
 
 	// try writing, should see error
-	writer, err = donut.GetObjectWriter("foo", "bar", 0, 2)
+	writer, err = donut.GetObjectWriter("foo", "bar", 0)
 	c.Assert(writer, IsNil)
 	c.Assert(err, Not(IsNil))
 
@@ -83,7 +83,7 @@ func (s *MySuite) TestObjectList(c *C) {
 	for i := 0; i < 10; i++ {
 		object := "foo" + strconv.Itoa(i)
 		objects = append(objects, object)
-		writer, err := donut.GetObjectWriter("foo", object, 0, 2)
+		writer, err := donut.GetObjectWriter("foo", object, 0)
 		c.Assert(err, IsNil)
 		writer.Write([]byte(object))
 		writer.Close()
@@ -126,7 +126,7 @@ func (s *MySuite) TestObjectMetadata(c *C) {
 	c.Assert(result, IsNil)
 	c.Assert(err, Not(IsNil))
 
-	writer, err := donut.GetObjectWriter("foo", "bar", 1, 2)
+	writer, err := donut.GetObjectWriter("foo", "bar", 1)
 	c.Assert(err, IsNil)
 	_, err = writer.Write([]byte("Hello World"))
 	c.Assert(err, IsNil)
@@ -148,5 +148,4 @@ func (s *MySuite) TestObjectMetadata(c *C) {
 	result, err = donut.GetObjectMetadata("foo", "bar", 0)
 	c.Assert(err, Not(IsNil))
 	c.Assert(result, IsNil)
-
 }
diff --git a/pkg/storage/encoded/encoded.go b/pkg/storage/encoded/encoded.go
index 5cf0e5fd2..384afbd50 100644
--- a/pkg/storage/encoded/encoded.go
+++ b/pkg/storage/encoded/encoded.go
@@ -295,7 +295,7 @@ func (diskStorage StorageDriver) CreateObject(bucketKey string, objectKey string
 	splitStream := split.Stream(reader, uint64(blockSize))
 	writers := make([]*donutbox.NewObject, 16)
 	for i := 0; i < 16; i++ {
-		newWriter, err := diskStorage.donutBox.GetObjectWriter(bucketKey, objectKey, uint(i), uint(blockSize))
+		newWriter, err := diskStorage.donutBox.GetObjectWriter(bucketKey, objectKey, uint(i))
 		if err != nil {
 			closeAllWritersWithError(writers, err)
 			return err