diff --git a/mavlink-core/src/connection/direct_serial.rs b/mavlink-core/src/connection/direct_serial.rs
index 63262e35f6..a3a33a0fa6 100644
--- a/mavlink-core/src/connection/direct_serial.rs
+++ b/mavlink-core/src/connection/direct_serial.rs
@@ -1,3 +1,5 @@
+//! Serial MAVLINK connection
+
 use crate::connection::MavConnection;
 use crate::peek_reader::PeekReader;
 use crate::{read_versioned_msg, write_versioned_msg, MavHeader, MavlinkVersion, Message};
@@ -8,8 +10,6 @@ use std::sync::Mutex;
 use crate::error::{MessageReadError, MessageWriteError};
 use serial::{prelude::*, SystemPort};
 
-/// Serial MAVLINK connection
-
 pub fn open(settings: &str) -> io::Result<SerialConnection> {
     let settings_toks: Vec<&str> = settings.split(':').collect();
     if settings_toks.len() < 2 {
diff --git a/mavlink-core/src/connection/file.rs b/mavlink-core/src/connection/file.rs
index 12e6bebafa..85444bb6ae 100644
--- a/mavlink-core/src/connection/file.rs
+++ b/mavlink-core/src/connection/file.rs
@@ -1,3 +1,5 @@
+//! File MAVLINK connection
+
 use crate::connection::MavConnection;
 use crate::error::{MessageReadError, MessageWriteError};
 use crate::peek_reader::PeekReader;
@@ -7,8 +9,6 @@ use std::fs::File;
 use std::io;
 use std::sync::Mutex;
 
-/// File MAVLINK connection
-
 pub fn open(file_path: &str) -> io::Result<FileConnection> {
     let file = File::open(file_path)?;
 
diff --git a/mavlink-core/src/connection/tcp.rs b/mavlink-core/src/connection/tcp.rs
index 0629039fbf..35b7f09084 100644
--- a/mavlink-core/src/connection/tcp.rs
+++ b/mavlink-core/src/connection/tcp.rs
@@ -1,3 +1,5 @@
+//! TCP MAVLink connection
+
 use crate::connection::MavConnection;
 use crate::peek_reader::PeekReader;
 use crate::{read_versioned_msg, write_versioned_msg, MavHeader, MavlinkVersion, Message};
@@ -10,8 +12,6 @@ use std::time::Duration;
 
 use super::get_socket_addr;
 
-/// TCP MAVLink connection
-
 pub fn select_protocol<M: Message>(
     address: &str,
 ) -> io::Result<Box<dyn MavConnection<M> + Sync + Send>> {
diff --git a/mavlink-core/src/connection/udp.rs b/mavlink-core/src/connection/udp.rs
index 17926aea02..3ec739d3f5 100644
--- a/mavlink-core/src/connection/udp.rs
+++ b/mavlink-core/src/connection/udp.rs
@@ -1,5 +1,5 @@
 //! UDP MAVLink connection
-//!
+
 use std::collections::VecDeque;
 
 use crate::connection::MavConnection;