diff --git a/trace/trace.go b/trace/trace.go
index d49dba2..1d73347 100644
--- a/trace/trace.go
+++ b/trace/trace.go
@@ -42,7 +42,7 @@ type Config struct {
 	AsyncPrinter     func(res *Result)
 	PktSize          int
 	Maptrace         bool
-	DontFragment	 bool
+	DontFragment     bool
 }
 
 type Method string