diff --git a/bytewriter.go b/bytewriter.go
index c9b602c..ae9cbd3 100644
--- a/bytewriter.go
+++ b/bytewriter.go
@@ -9,7 +9,11 @@ import (
 	"io"
 )
 
-var newline = []byte{'\n'}
+var (
+        newline    = []byte{'\n'}
+        dataindent = []byte{'\t', '\t'}
+        space      = []byte{' '}
+)
 
 type ByteWriter struct {
 	io.Writer
@@ -24,7 +28,10 @@ func (w *ByteWriter) Write(p []byte) (n int, err error) {
 	for n = range p {
 		if w.c%12 == 0 {
 			w.Writer.Write(newline)
+			w.Writer.Write(dataindent)
 			w.c = 0
+		} else {
+			w.Writer.Write(space)
 		}
 
 		fmt.Fprintf(w.Writer, "0x%02x,", p[n])