diff --git a/modules/pay/api_activitybuy.go b/modules/pay/api_activitybuy.go
index 34c419dc0..abf772262 100644
--- a/modules/pay/api_activitybuy.go
+++ b/modules/pay/api_activitybuy.go
@@ -66,7 +66,7 @@ func (this *apiComp) ActivityBuy(session comm.IUserSession, req *pb.PayActivityB
 		return
 	}
 
-	if _, ok := info.Activitys[conf.Type].Items[conf.Id]; ok {
+	if _, ok := info.Activitys[conf.Type].Items[conf.Id]; !ok {
 		info.Activitys[conf.Type].Items[conf.Id] = &pb.PayActivityGiftbagItem{
 			Id:          conf.Id,
 			Lastrefresh: configure.Now().Unix(),