diff --git a/src/domain/msg/arg.rs b/src/domain/msg/arg.rs
index 1dd31892..6c78b29b 100644
--- a/src/domain/msg/arg.rs
+++ b/src/domain/msg/arg.rs
@@ -278,6 +278,7 @@ pub fn subcmds<'a>() -> Vec<App<'a, 'a>> {
                         .short("r"),
                 ),
             SubCommand::with_name("reply")
+                .aliases(&["rep", "r"])
                 .about("Answers to a message")
                 .arg(uid_arg())
                 .arg(reply_all_arg())
diff --git a/src/domain/msg/handler.rs b/src/domain/msg/handler.rs
index 518b5931..555191a4 100644
--- a/src/domain/msg/handler.rs
+++ b/src/domain/msg/handler.rs
@@ -326,6 +326,7 @@ pub fn read<OutputService: OutputServiceInterface, ImapService: ImapServiceInter
     Ok(())
 }
 
+/// Reply to the given message UID.
 pub fn reply<
     OutputService: OutputServiceInterface,
     ImapService: ImapServiceInterface,