diff --git a/src/lib.rs b/src/lib.rs
index e1f5ae1..ae2b157 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -49,34 +49,34 @@ impl Tenquestionmarks {
 
     pub fn run (&self) {
         crossbeam::scope(|scope| {
-            // Our event channel.
+            // Our main event channel.
             // Modules push events to tenquestionmarks using this channel.
-            let (ref sender, ref receiver) = mpsc::channel();
+            let (ref main_sender, ref main_receiver) = mpsc::channel();
 
             // Module threads.
             // Each Module will produce events which tenquestionmarks will push
             // into all other Modules.
             // tenquestionmarks propagates all events to each Module through these
             // channels.
-            let senders: BTreeMap<&str, Sender<Arc<Envelope>>> = self.modules.iter().map(|(key, module)| {
-                let module_sender = sender.clone();
-                let (sender, receiver) = mpsc::channel();
+            let module_senders: BTreeMap<&str, Sender<Arc<Envelope>>> = self.modules.iter().map(|(key, module)| {
+                let main_sender_clone = main_sender.clone();
+                let (module_sender, module_receiver) = mpsc::channel();
                 info!("Spawning thread for \"{}\"", key);
                 scope.spawn(move || {
-                    module.run(module_sender, receiver);
+                    module.run(main_sender_clone, module_receiver);
                     info!("Thread for \"{}\" is exiting", key);
                 });
-                (&key[..], sender)
+                (&key[..], module_sender)
             }).collect();
 
             // tenquestionmarks main event loop.
             // tenquestionmarks receives events produced by Modules and pushes them
             // into all other Modules
             loop {
-                match receiver.recv() {
+                match main_receiver.recv() {
                     Ok(envelope) => {
                         let arc_envelope = Arc::new(envelope);
-                        for (key, sender) in &senders {
+                        for (key, sender) in &module_senders {
                             match sender.send(arc_envelope.clone()) {
                                 Err(err) => debug!("Failed to dispatch event to module \"{}\": {:?}", key, err),
                                 Ok(_) => {}