diff --git a/essential/visible/service/helper/marker/marker.go b/essential/visible/service/helper/marker/marker.go
index ba0369e..c544a05 100644
--- a/essential/visible/service/helper/marker/marker.go
+++ b/essential/visible/service/helper/marker/marker.go
@@ -59,7 +59,7 @@ const (
 	obrimMarkerTypeEncoded = "encoded"
 
 	obrimMarkerDefaultEpoch  int64 = 0
-	obrimMarkerDefaultLength       = 16
+	obrimMarkerDefaultLength int   = 16
 
 	obrimMarkerDefaultCharset = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
 )