diff --git a/src/lib.rs b/src/lib.rs
index 5e33d70..76d1a3c 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -58,7 +58,7 @@
 //!
 //! // Create message frame
 //!let can_id = Id::Standard(StandardId::new(0x55).unwrap());
-//!let message_type = Can20 {};
+//!let message_type = Can20::<8> {};
 //!let payload = [1, 2, 3, 4, 5, 6, 7, 8];
 //!let pl_bytes = Bytes::copy_from_slice(&payload);
 //!let can_message = TxMessage::new(message_type, pl_bytes, can_id).unwrap();
diff --git a/src/message.rs b/src/message.rs
index 43b4d02..b6d7bba 100644
--- a/src/message.rs
+++ b/src/message.rs
@@ -11,8 +11,8 @@
 //!
 //! // Frame ID
 //! let message_id = Id::Standard(StandardId::new(0x123).unwrap());
-//! // Set message type to CAN2.0
-//! let message_type = Can20{};
+//! // Set message type to CAN2.0 with 8 data bytes
+//! let message_type = Can20::<8>{};
 //! // Create payload buffer
 //! let payload = [1,2,3,4,5,6,7,8];
 //! // Create Bytes object