diff --git a/proxy/proxypair.js b/proxy/proxypair.js
index e5f33ea..58efa1a 100644
--- a/proxy/proxypair.js
+++ b/proxy/proxypair.js
@@ -184,6 +184,10 @@ class ProxyPair {
       this.client.close();
     }
     this.client = null;
+    if (this.peerConnOpen()) {
+      this.pc.close();
+    }
+    this.pc = null;
     if (this.relayIsReady()) {
       this.relay.close();
     }
@@ -238,6 +242,10 @@ class ProxyPair {
     return void 0 === ws || WebSocket.CLOSED === ws.readyState;
   }
 
+  peerConnOpen() {
+    return (null !== this.pc) && ('closed' !== this.pc.connectionState);
+  }
+
 }
 
 ProxyPair.prototype.MAX_BUFFER = 10 * 1024 * 1024;