diff --git a/lego/sys/log/formatter_console.go b/lego/sys/log/formatter_console.go
index bdf06cba5..259ac1829 100644
--- a/lego/sys/log/formatter_console.go
+++ b/lego/sys/log/formatter_console.go
@@ -63,6 +63,9 @@ func (this *ConsoleFormatter) Format(config *EncoderConfig, entry *Entry) (*pool
 		line.AppendString(entry.Message)
 	}
 	for _, v := range entry.Data {
+		if v.Key == "" {
+			continue
+		}
 		if !isfirst {
 			line.AppendString(config.ConsoleSeparator)
 		}