diff --git a/keepalive/keep_alive.go b/keepalive/keep_alive.go
index c961dbe1d..c9b3b62aa 100644
--- a/keepalive/keep_alive.go
+++ b/keepalive/keep_alive.go
@@ -123,6 +123,7 @@ func (k *KeepAlive) keepAliveIsSupported(ctx context.Context) (string, bool) {
 func (k *KeepAlive) addIoMonitor(address string, m *ioMonitor) {
 	k.Lock()
 	defer k.Unlock()
+	log.Debugf("add stream address for keepalive list: %s", address)
 	k.streams[address] = m
 }
 
diff --git a/signal/client/grpc.go b/signal/client/grpc.go
index e283e115a..86a8e9590 100644
--- a/signal/client/grpc.go
+++ b/signal/client/grpc.go
@@ -372,7 +372,7 @@ func (c *GrpcClient) receive(stream proto.SignalExchange_ConnectStreamClient,
 		}
 
 		if appKeepAlive.IsKeepAliveMsg(msg.Body) {
-			log.Printf("received keepalive")
+			log.Tracef("received keepalive")
 			continue
 		}