diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index e9b7ed34..614cdea0 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -482,7 +482,7 @@ class MlogbInViewSet(CreateModelMixin, UpdateModelMixin, DestroyModelMixin, Cust
                 new_batch = ins.batch
                 number = mlog.equipment.number if mlog.equipment else ''
                 if number:
-                    new_batch = f'{number}{new_batch}'
+                    new_batch = f'{new_batch}{number}'
                 m_dict['batch'] = new_batch
             Mlogb.objects.get_or_create(**m_dict, defaults=m_dict)