diff --git a/metric/log.go b/metric/log.go
index db9f56c8..bf656aa4 100644
--- a/metric/log.go
+++ b/metric/log.go
@@ -52,6 +52,9 @@ func Size(size int) zap.Field {
 }
 
 func (m *metric) RequestLog(ctx context.Context, rpc string, fields ...zap.Field) {
+	if m == nil {
+		return
+	}
 	peerId, _ := peer.CtxPeerId(ctx)
 	ak, _ := peer.CtxPubKey(ctx)
 	var acc string