diff --git a/server/payserver/api/v1/ingame/ingame.go b/server/payserver/api/v1/ingame/ingame.go
index 3900c94..687b088 100644
--- a/server/payserver/api/v1/ingame/ingame.go
+++ b/server/payserver/api/v1/ingame/ingame.go
@@ -65,7 +65,7 @@ func (iga *InGameApi) ServerPreOrder(c *gin.Context) {
 	goodsid := c.Query("goods_id")
 	sessionid := c.Query("session_id")
 	sign := c.Query("sign")
-	if strings.EqualFold(q5.Md5Str(accountId+goodsid+constant.GLOBAL_SALT+sessionid), strings.ToLower(sign)) {
+	if !strings.EqualFold(q5.Md5Str(accountId+goodsid+constant.GLOBAL_SALT+sessionid), strings.ToLower(sign)) {
 		f5.RspErr(c, 401, "sign err")
 		return
 	}
@@ -109,7 +109,7 @@ func (iga *InGameApi) PayDone(c *gin.Context) {
 	orderid := c.Query("order_id")
 	sessionid := c.Query("session_id")
 	sign := c.Query("sign")
-	if strings.EqualFold(q5.Md5Str(accountId+orderid+constant.GLOBAL_SALT+sessionid), strings.ToLower(sign)) {
+	if !strings.EqualFold(q5.Md5Str(accountId+orderid+constant.GLOBAL_SALT+sessionid), strings.ToLower(sign)) {
 		f5.RspErr(c, 401, "sign err")
 		return
 	}