diff --git a/src/proto/chan.rs b/src/proto/chan.rs
new file mode 100644
index 0000000..fb1dc4c
--- /dev/null
+++ b/src/proto/chan.rs
@@ -0,0 +1,22 @@
+//! An extension trait that provides the ability to check if a string is a channel name.
+
+/// An extension trait giving strings a function to check if they are a channel.
+pub trait ChannelExt {
+    /// Returns true if the specified name is a channel name.
+    fn is_channel_name(&self) -> bool;
+}
+
+impl<'a> ChannelExt for &'a str {
+    fn is_channel_name(&self) -> bool {
+        self.starts_with("#") ||
+            self.starts_with("&") ||
+            self.starts_with("+") ||
+            self.starts_with("!")
+    }
+}
+
+impl ChannelExt for String {
+    fn is_channel_name(&self) -> bool {
+        (&self[..]).is_channel_name()
+    }
+}
diff --git a/src/proto/command.rs b/src/proto/command.rs
index 26b087b..3737f3c 100644
--- a/src/proto/command.rs
+++ b/src/proto/command.rs
@@ -3,7 +3,7 @@ use std::ascii::AsciiExt;
 use std::str::FromStr;
 
 use error;
-use proto::{ChannelMode, Mode, Response, UserMode};
+use proto::{ChannelExt, ChannelMode, Mode, Response, UserMode};
 
 /// List of all client commands as defined in [RFC 2812](http://tools.ietf.org/html/rfc2812). This
 /// also includes commands from the
@@ -1754,18 +1754,3 @@ impl FromStr for BatchSubCommand {
         }
     }
 }
-
-/// An extension trait giving strings a function to check if they are a channel.
-pub trait ChannelExt {
-    /// Returns true if the specified name is a channel name.
-    fn is_channel_name(&self) -> bool;
-}
-
-impl<'a> ChannelExt for &'a str {
-    fn is_channel_name(&self) -> bool {
-        self.starts_with("#") ||
-            self.starts_with("&") ||
-            self.starts_with("+") ||
-            self.starts_with("!")
-    }
-}
diff --git a/src/proto/mod.rs b/src/proto/mod.rs
index 7f7ec72..6d46691 100644
--- a/src/proto/mod.rs
+++ b/src/proto/mod.rs
@@ -1,6 +1,7 @@
 //! Support for the IRC protocol using Tokio.
 
 pub mod caps;
+pub mod chan;
 pub mod command;
 pub mod irc;
 pub mod line;
@@ -9,6 +10,7 @@ pub mod mode;
 pub mod response;
 
 pub use self::caps::{Capability, NegotiationVersion};
+pub use self::chan::ChannelExt;
 pub use self::command::{BatchSubCommand, CapSubCommand, Command};
 pub use self::irc::IrcCodec;
 pub use self::message::Message;