diff --git a/TODO b/TODO
index 89d38be..7b33c51 100644
--- a/TODO
+++ b/TODO
@@ -5,7 +5,7 @@ Features
 * slave must listen only request sent for him
 
 Cleanups
-* use uint16_t, reduce size of structs (e.g. address is uint16_t)
+* see the max length of a message and define size var accordingly (uint8_t)
 * split compute_response_size to reuse
 * split modbus.c (tcp/rtu, query/response)
 * t_id in param_msqg
@@ -13,4 +13,3 @@ Cleanups
 
 Documentation
 * README with a example to test the library
-* Better API coverage in source code