diff --git a/src/core/player.rs b/src/core/player.rs
index cb3d319..3457a88 100644
--- a/src/core/player.rs
+++ b/src/core/player.rs
@@ -27,7 +27,7 @@ use crate::{
 
 /// Opaque player identifier. Cannot contain spaces, must be shorter than 32.
 #[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize)]
-pub struct PlayerId(pub Str);
+pub struct PlayerId(Str);
 impl PlayerId {
     pub fn from(str: impl Into<Str>) -> Result<PlayerId> {
         let bytes = str.into();
@@ -46,22 +46,6 @@ impl PlayerId {
         self.0
     }
 }
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub struct Prefix(pub Str);
-
-#[derive(Clone, Debug, PartialEq, Eq)]
-pub struct PrefixedNick {
-    pub prefix: Prefix,
-    pub nick: PlayerId,
-}
-impl PrefixedNick {
-    pub fn fromPlayerId(id: PlayerId) -> Result<PrefixedNick> {
-        Ok(PrefixedNick { prefix: Prefix(Str::from("")), nick: id } )
-    }
-    pub fn fromStr(nick: Str) -> Result<PrefixedNick> {
-        Ok(PrefixedNick { prefix: Prefix(Str::from("")), nick: PlayerId(nick) } )
-    }
-}
 
 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
 pub struct ConnectionId(pub AnonKey);
diff --git a/src/projections/irc/mod.rs b/src/projections/irc/mod.rs
index 37fcd42..4c6808a 100644
--- a/src/projections/irc/mod.rs
+++ b/src/projections/irc/mod.rs
@@ -18,6 +18,7 @@ use crate::prelude::*;
 use crate::protos::irc::client::{client_message, ClientMessage};
 use crate::protos::irc::server::{AwayStatus, ServerMessage, ServerMessageBody};
 use crate::protos::irc::{Chan, Recipient};
+use crate::protos::irc::user::PrefixedNick;
 use crate::util::Terminator;
 
 #[cfg(test)]
diff --git a/src/protos/irc/mod.rs b/src/protos/irc/mod.rs
index 4d65efd..0997a79 100644
--- a/src/protos/irc/mod.rs
+++ b/src/protos/irc/mod.rs
@@ -1,6 +1,7 @@
 //! Client-to-Server IRC protocol.
 pub mod client;
 pub mod server;
+pub mod user;
 
 use std::io::Result;
 use crate::prelude::Str;
diff --git a/src/protos/irc/server.rs b/src/protos/irc/server.rs
index 47ca9ac..990941e 100644
--- a/src/protos/irc/server.rs
+++ b/src/protos/irc/server.rs
@@ -3,7 +3,7 @@ use tokio::io::AsyncWrite;
 use tokio::io::AsyncWriteExt;
 
 use super::*;
-use crate::core::player::PrefixedNick;
+use crate::protos::irc::user::PrefixedNick;
 
 /// Server-to-client message.
 #[derive(Clone, Debug, PartialEq, Eq)]
@@ -284,17 +284,16 @@ impl ServerMessageBody {
                 let mut membersTail: Vec<PrefixedNick> = members.tail.clone();
                 membersTail.insert(0, members.clone().head);
 
-                let membersStr: Vec<String> = membersTail.iter().map(| prefixedNick| {
-                    let pref: String = prefixedNick.prefix.0.clone().to_string();
-                    let nick: String = prefixedNick.nick.0.clone().to_string();
-                    pref + &nick
-                }).collect();
                 writer.write_all(b"353 ").await?;
                 writer.write_all(client.as_bytes()).await?;
                 writer.write_all(b" = ").await?;
                 chan.write_async(writer).await?;
                 writer.write_all(b" :").await?;
-                writer.write_all(membersStr.join(", ").as_bytes()).await?;
+                for member in members {
+                    writer.write_all(member.prefix.to_string().as_bytes()).await?;
+                    writer.write_all(member.nick.as_bytes()).await?;
+                    writer.write_all(b" ").await?;
+                }
             }
             ServerMessageBody::N366NamesReplyEnd { client, chan } => {
                 writer.write_all(b"366 ").await?;
diff --git a/src/protos/irc/user.rs b/src/protos/irc/user.rs
new file mode 100644
index 0000000..4f2d0cd
--- /dev/null
+++ b/src/protos/irc/user.rs
@@ -0,0 +1,30 @@
+use super::*;
+use std::fmt;
+use crate::core::player::PlayerId;
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub enum Prefix{
+  empty,
+}
+impl fmt::Display for Prefix {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            Prefix::empty => write!(f, ""),
+        }
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct PrefixedNick {
+    pub prefix: Prefix,
+    pub nick: Str,
+}
+impl PrefixedNick {
+    pub fn fromStr(nick: Str) -> Result<PrefixedNick> {
+        Ok(PrefixedNick { prefix: Prefix::empty, nick } )
+    }
+
+    pub fn fromPlayerId(id: PlayerId) -> Result<PrefixedNick> {
+        Ok(PrefixedNick { prefix: Prefix::empty, nick: id.into_inner() } )
+    }
+}
\ No newline at end of file