diff --git a/common/serial/string.go b/common/serial/string.go
index c8e0144c..fa9fe098 100644
--- a/common/serial/string.go
+++ b/common/serial/string.go
@@ -5,7 +5,7 @@ import (
 	"strings"
 )
 
-// ToString serialize an abitrary value into string.
+// ToString serialize an arbitrary value into string.
 func ToString(v interface{}) string {
 	if v == nil {
 		return " "