diff --git a/source/birchwood/client/receiver.d b/source/birchwood/client/receiver.d
index ae123e8..c4573f4 100644
--- a/source/birchwood/client/receiver.d
+++ b/source/birchwood/client/receiver.d
@@ -8,5 +8,10 @@ import libsnooze;
 
 public final class ReceiverThread : Thread
 {
-
+    /** 
+     * The libsnooze event to await on which
+     * when we wake up signals a new message
+     * to be processed and received
+     */
+    private Event receiveEvent;
 }
\ No newline at end of file
diff --git a/source/birchwood/client/sender.d b/source/birchwood/client/sender.d
index 212b2d9..17b4b86 100644
--- a/source/birchwood/client/sender.d
+++ b/source/birchwood/client/sender.d
@@ -8,5 +8,10 @@ import libsnooze;
 
 public final class SenderThread : Thread
 {
-
+    /** 
+     * The libsnooze event to await on which
+     * when we wake up signals a new message
+     * to be processed and sent
+     */
+    private Event receiveEvent;
 }
\ No newline at end of file