diff --git a/lib/net/peer.js b/lib/net/peer.js
index 92df0938..960be032 100644
--- a/lib/net/peer.js
+++ b/lib/net/peer.js
@@ -328,7 +328,7 @@ Peer.prototype.setCipher = function setCipher(cipher) {
     if (self.destroyed)
       return;
 
-    self.logger.debug('Rekeying with peer (%s).', self.hostname);
+    self.logger.debug('Rekeying with peer (%s).', self.hostname());
     self.send(self.bip151.toRekey());
   });