diff --git a/msg.go b/msg.go
index 861dcb6..82c2968 100644
--- a/msg.go
+++ b/msg.go
@@ -356,7 +356,9 @@ func parseSubTypeMessageGStockAnyAck(m *ChatWarsMessage, r *regexp.Regexp) (*Cha
 				Name:     l[2],
 				ItemID64: i,
 				Quantity: q,
-				Quality:  rq.ReplaceAllString(l[1], "${Quality}"),
+			}
+			if rq.MatchString(l[1]) {
+				item.Quality = rq.ReplaceAllString(l[1], "${Quality}")
 			}
 			log.Printf("Item : %s - %s : %s\n", item.Code, item.Name, item.Quality)
 			stock = append(stock, item)