diff --git a/squinnondation/peers.py b/squinnondation/peers.py
index a63d7ba..5ca42b9 100644
--- a/squinnondation/peers.py
+++ b/squinnondation/peers.py
@@ -337,7 +337,6 @@ class User(Peer):
             return
         elif isinstance(key, int):
             # Unmanaged complex key
-            self.add_system_message(str(key))
             return
         elif key != "\n":
             # Insert the pressed key in the current message