diff --git a/bricks/rtc.js b/bricks/rtc.js
index 5a2e13f..ec6c032 100644
--- a/bricks/rtc.js
+++ b/bricks/rtc.js
@@ -458,7 +458,7 @@ bricks.RTCP2PConnect = class {
 			dc.close();
 		}
 		pc.close();
-		self.peers = {k:v for k,v in self.peers if k!=peer.id};
+		delete self.peers[peer.id];
 	}
 });