diff --git a/sonyflake/id.go b/sonyflake/id.go
index 4eeb9e3..e2b8011 100644
--- a/sonyflake/id.go
+++ b/sonyflake/id.go
@@ -18,8 +18,8 @@ func IDFromString(s string) (ID, error) {
 }
 
 // MarshalText ...
-func (i *ID) MarshalText() ([]byte, error) {
-	return []byte(strconv.FormatInt(int64(*i), 10)), nil
+func (i ID) MarshalText() ([]byte, error) {
+	return []byte(strconv.FormatInt(int64(i), 10)), nil
 }
 
 // UnmarshalText ...