diff --git a/server/wheelserver/api/v1/inapp_shop/inapp_shop.go b/server/wheelserver/api/v1/inapp_shop/inapp_shop.go
index 5f7cfefc..fb7efc85 100644
--- a/server/wheelserver/api/v1/inapp_shop/inapp_shop.go
+++ b/server/wheelserver/api/v1/inapp_shop/inapp_shop.go
@@ -122,7 +122,7 @@ func (this *InAppShopApi) Callback(c *gin.Context) {
 
 	sign := strings.ToLower(hex.EncodeToString(mac.Sum(nil)))
 	f5.GetSysLog().Info("%s, %s, %s", secret, sign, strings.ToLower(reqObj.Signature))
-	if strings.EqualFold(sign, strings.ToLower(reqObj.Signature)) {
+	if !strings.EqualFold(sign, strings.ToLower(reqObj.Signature)) {
 		f5.RspErr(c, 401, "invalid sign")
 		return
 	}