diff --git a/back/models/invoice-in.js b/modules/invoiceIn/back/models/invoiceInVehicle.js
similarity index 81%
rename from back/models/invoice-in.js
rename to modules/invoiceIn/back/models/invoiceInVehicle.js
index 6fa1fa0e1..cf45bf741 100644
--- a/back/models/invoice-in.js
+++ b/modules/invoiceIn/back/models/invoiceInVehicle.js
@@ -2,7 +2,7 @@ let UserError = require('vn-loopback/util/user-error');
 
 module.exports = Self => {
     Self.rewriteDbError(function(err) {
-        if (err.code === 'ER_ROW_IS_REFERENCED')
+        if (err.code === 'ER_ROW_IS_REFERENCED_2')
             return new UserError(`This invoice has a linked vehicle.`);
         return err;
     });