diff --git a/modules/player/service/pet.go b/modules/player/service/pet.go
index 2002fe24..823f6dd0 100644
--- a/modules/player/service/pet.go
+++ b/modules/player/service/pet.go
@@ -123,10 +123,15 @@ func (s *PetService) BuyPet(pid uint32) error {
 		if err != nil {
 			return err
 		}
-		_, err = tx.Model(s.Model).Where("catch_time", tt.CatchTime).Delete()
+		res, err := tx.Model(s.Model).Where("id", tt.ID).Delete()
+
 		if err != nil {
 			return err
 		}
+		cd, _ := res.RowsAffected()
+		if cd == 0 {
+			return fmt.Errorf("重复订单")
+		}
 		_, err = tx.Model(basemodel.BaseSysUser{}).Where("id", tt.PlayerID).Increment("free_gold", int64(tt.SalePrice)*98)
 		if err != nil {
 			return err