diff --git a/util/data/data.go b/util/data/data.go
index 32656ceb..80ee7ac1 100644
--- a/util/data/data.go
+++ b/util/data/data.go
@@ -50,11 +50,6 @@ func (d *Doc) Copy() (i interface{}) {
 	return deep.Copy(d.data)
 }
 
-// JSON converts the data object to a JSON byte slice.
-func (d *Doc) JSON() (data []byte) {
-	return pack.ToJSON(d.data)
-}
-
 // Encode encodes the data object to a byte slice.
 func (d *Doc) Encode() (dst []byte) {
 	dst = pack.Encode(&d.data)
diff --git a/util/data/data_test.go b/util/data/data_test.go
index f66d451d..70075ee0 100644
--- a/util/data/data_test.go
+++ b/util/data/data_test.go
@@ -31,7 +31,6 @@ func TestConversion(t *testing.T) {
 		enc := doc.Encode()
 		dec := doc.Decode(enc)
 		So(doc, ShouldResemble, dec)
-		So(doc.JSON(), ShouldResemble, dec.JSON())
 	})
 
 }