diff --git a/simplelog/simplelog.go b/simplelog/simplelog.go
index 9c2ce90..c59730b 100644
--- a/simplelog/simplelog.go
+++ b/simplelog/simplelog.go
@@ -129,7 +129,7 @@ func WithLogFlag(flag LevelFlag) OptionFunc {
 var defaultOption = &Option{
 	Writer:     os.Stdout,
 	TimeFormat: "2006-01-02 15:04:05.99",
-	LogFormat:  "%-23s %s %v --- [%20s] : %s\n",
+	LogFormat:  "%-22s %s %v --- [%20s] : %s\n",
 	LevelFlag:  FlagInfo | FlagWarn | FlagError | FlagDebug,
 }