diff --git a/vlib/builtin/int.v b/vlib/builtin/int.v
index cd1cbd86e2..9c769d999f 100644
--- a/vlib/builtin/int.v
+++ b/vlib/builtin/int.v
@@ -7,7 +7,7 @@ module builtin
 // ----- value to string functions -----
 //
 
-//type u8 = byte
+type u8 = byte
 
 // ptr_str returns the address of `ptr` as a `string`.
 pub fn ptr_str(ptr voidptr) string {