diff --git a/readme.md b/readme.md
index 11a4485..791f30b 100644
--- a/readme.md
+++ b/readme.md
@@ -7,7 +7,11 @@
 
 ## Nachrichtenaufbau (Message Frame)
 
-[ Startbyte ] [ Length ] [ CommandPage ] [ Payload (variabel) ] [ Checksum ]
++-------------+----------+---------------+----------------------+-----------+
+| Startbyte   | Length   | CommandPage   | Payload (variabel)   | Checksum  |
++-------------+----------+---------------+----------------------+-----------+
+|    0xAA     |  1 Byte  |    1 Byte     |     n Bytes          |  1 Byte   |
++-------------+----------+---------------+----------------------+-----------+
 
 ### Felder im Detail: