diff --git a/vendor/go.etcd.io/etcd/pkg/logutil/zap_raft.go b/vendor/go.etcd.io/etcd/pkg/logutil/zap_raft.go
index e92cba0..f016b30 100644
--- a/vendor/go.etcd.io/etcd/pkg/logutil/zap_raft.go
+++ b/vendor/go.etcd.io/etcd/pkg/logutil/zap_raft.go
@@ -23,7 +23,7 @@
 	"go.uber.org/zap/zapcore"
 )
 
-// NewRaftLogger converts "*zap.Logger" to "raft.Logger".
+// NewRaftLogger builds "raft.Logger" from "*zap.Config".
 func NewRaftLogger(lcfg *zap.Config) (raft.Logger, error) {
 	if lcfg == nil {
 		return nil, errors.New("nil zap.Config")
@@ -35,6 +35,11 @@
 	return &zapRaftLogger{lg: lg, sugar: lg.Sugar()}, nil
 }
 
+// NewRaftLoggerZap converts "*zap.Logger" to "raft.Logger".
+func NewRaftLoggerZap(lg *zap.Logger) raft.Logger {
+	return &zapRaftLogger{lg: lg, sugar: lg.Sugar()}
+}
+
 // NewRaftLoggerFromZapCore creates "raft.Logger" from "zap.Core"
 // and "zapcore.WriteSyncer".
 func NewRaftLoggerFromZapCore(cr zapcore.Core, syncer zapcore.WriteSyncer) raft.Logger {