diff --git a/msg.go b/msg.go
index bef25d0..6c775e5 100644
--- a/msg.go
+++ b/msg.go
@@ -178,7 +178,7 @@ func parseSubTypeMessageReportAck(m *ChatWarsMessage, r *regexp.Regexp) (*ChatWa
 	log.Printf("parseSubTypeMessageReport : Extra : %s\n", r.ReplaceAllString(m.Text, "${Extra}"))
 	re := regexp.MustCompile(`(.+)`)
 	for i, l := range re.FindAllStringSubmatch(r.ReplaceAllString(m.Text, "${Extra}"), -1) {
-		log.Printf("parseSubTypeMessageReport : Extra[%d] : %v\n", i, l)
+		log.Printf("parseSubTypeMessageReport : Extra[%d] : %s\n", i, l[0])
 	}
 
 	/*