diff --git a/server/lib/Lobby.js b/server/lib/Lobby.js
index 75cae49..d4bbb37 100644
--- a/server/lib/Lobby.js
+++ b/server/lib/Lobby.js
@@ -26,8 +26,8 @@ class Lobby extends EventEmitter
 		// Close the peers.
 		for (const peer in this._peers)
 		{
-			if (!peer.closed)
-				peer.close();
+			if (!this._peers[peer].closed)
+				this._peers[peer].close();
 		}
 
 		this._peers = null;