diff --git a/business/partner/purchase/mtwm/mtwm.go b/business/partner/purchase/mtwm/mtwm.go
index 06b52ec59..ea4d005a3 100644
--- a/business/partner/purchase/mtwm/mtwm.go
+++ b/business/partner/purchase/mtwm/mtwm.go
@@ -79,7 +79,7 @@ func rangeMtwm2JX(areaStr string) string {
 			coordList := make([]string, len(area))
 			for k, v := range area {
 				vv := v.(map[string]interface{})
-				coordList[k] = fmt.Sprintf("%.6f,%.6f", jxutils.IntCoordinate2Standard(int(utils.MustInterface2Int64(vv["x"]))), jxutils.IntCoordinate2Standard(int(utils.MustInterface2Int64(vv["y"]))))
+				coordList[k] = fmt.Sprintf("%.6f,%.6f", jxutils.IntCoordinate2Standard(int(utils.ForceInterface2Int64(vv["x"]))), jxutils.IntCoordinate2Standard(int(utils.ForceInterface2Int64(vv["y"]))))
 			}
 			return strings.Join(coordList, ";")
 		}