diff --git a/datok.go b/datok.go
index 5bd54e9..5191877 100644
--- a/datok.go
+++ b/datok.go
@@ -968,6 +968,7 @@
 			}
 
 			// TODO: Better as a ring buffer
+			// buffer = buffer[buffc:] !slower
 			for x, i := range buffer[buffc:buffi] {
 				buffer[x] = i
 			}